Saturday, August 15, 2020

Captain Lakshmi Sahgal: A beacon of inspiration

This article is by

Share this article

Article Contributor(s)

Charvi Trivedi

Article Title

Captain Lakshmi Sahgal: A beacon of inspiration

Publisher

Global Views 360

Publication Date

August 15, 2020

URL

Captain Lakshmi Sahgal in INA Uniform

Captain Lakshmi Sahgal in INA Uniform | Source: Indiatimes

Indian freedom movement has given countless heroes who gave the prime of their lives to see India chart her own destiny by throwing out the Britishers. While there were leaders and fighters like Mahatma Gandhi or Netaji Subhash Chandra Bose, whom everyone knows, there were many other bravehearts who gave up their lives and used every ounce of their strength to free India from the clutches of British Rule. Doctor Lakshmi Sahgal was one of them.

Early Life

Lakshmi Swaminathan was born in Madras (now Chennai), which was under the Madras Presidency, British India, on October 24, 1914. Born to influential parents, Lakshmi was enthused with her mother’s contribution in the field of social work and inherited her father’s intelligence, who was a lawyer, and went on to become a doctor.

She received her MBBS degree from Madras Medical college in the year 1938 and a diploma in Obstetrics and Gynaecology, the following year and was a working doctor in the Kasturba Gandhi Hospital, Chennai. Moreover, she established a clinic in Singapore, a year after getting her diploma, for the under-privileged and Indian migrant labourers.

In Singapore she joined hands with the Indian Independence League, a political body headquartered in Singapore, which prepared Indians living outside of India, to seek independence from the harsh British rule.

Indian National Army days

When the Japanese forces lost the 1942 Battle of Singapore to the British Army, DR. Sahgal played a prominent role in tending to the injured war prisoners. Several of these prisoners had not lost hope yet and wanted to begin an Indian Liberation Army. Their wish was granted when Netaji Subhash Chandra Bose visited Singapore in July, 1943. After listening to Bose’s speeches on wanting to establish an army composed of women to fight against the British forces, Lakshmi quickly set up a meeting with Bose and expressed her desire to be a part of the women regiment. She soon launched the Rani of Jhansi regiment, which was a wonderful opportunity for numerous women to do something for their nation.

Lakshmi Swaminathan turned into Captain Lakshmi, which marked the beginning of her inspiring journey in the freedom struggle. Nearly 50,000 women trained and fought under her command. She also carried the title of Colonel in the women’s army unit, the first one ever to be carried by a female in the entire continent of Asia during that time. Her regiment battled against the British forces along with the Axis Powers.

Unfortunately, she was arrested in 1945 in Burma (now Myanmar) and remained there for a year until she was sent back to India.

Later years

Lakshmi married Colonel Prem Kumar Sahgal in March, 1947 in Lahore, British India. Lakshmi Sahgal moved to Kanpur with her husband and carried on with her medical practice, attending to the needs of evacuees after the Partition of India.

After Independence, Lakshmi entered into the world of policy making and represented her party, The Communist Party of India (Marxist), in Rajya Sabha. During the Bangladesh crisis, she was the one who called for medical aid for thousands of refugees from Bangladesh who came into Calcutta. Moreover, she led a medical team to tend to the victims of the catastrophic Bhopal Gas Tragedy and worked towards refurbishing peace during the anti-Sikh riots, both which took place in the year 1984.

In 2002, she was the only opponent of A.P.J Abdul Kalam when she got elected as a candidate in the Presidential elections, of four leftist parties namely the Revolutionary Socialist Party, All India Forward Bloc, the Communist Party of India and the Communist Party of India (Marxist).

DR. Lakshmi Sahgal was awarded the Padma Vibhushan, the second-highest civilian award, in 1998 for her great achievements, by R.K. Narayan. An airport in Dehat district of Kanpur, Captain Lakshmi Sahgal International Airport, is named in her honour.

She passed away on July, 23, 2012 after suffering from a cardiac arrest, at a good age of 97. Her noble deeds did not stop even after her death as she donated her body to Kanpur Medical College for medical research.

She was a true leader who broke the glass ceiling and barged into the male dominated world of revolutionary army which played a great role in throwing out the Britishers from India. After India’s independence she excelled in another male dominated domain, politics. Hers is an inspiring story that women can be equally brave and fierce as men and can achieve anything by showing perseverance.

Support us to bring the world closer

To keep our content accessible we don't charge anything from our readers and rely on donations to continue working. Your support is critical in keeping Global Views 360 independent and helps us to present a well-rounded world view on different international issues for you. Every contribution, however big or small, is valuable for us to keep on delivering in future as well.

Support Us

Share this article

Read More

July 19, 2021 11:59 AM

3D Printing: The direction to go for the Indian Defense and Aerospace Industries

3D printing is the next big game-changer on the technological front, almost a revolution if you will. 3D printing, also known as additive manufacturing, is a process of creating three-dimensional objects by layering two-dimensional cross sections on top of one another. The two-dimensional cross sections are computer-designed and rendered, which makes it all the more advanced. From Aerospace to Defense and Medical to Automotive, products manufactured via 3D printing are spreading their reach in the markets quite swiftly. This article will take a look at how 3D printing is beneficial and how the technology can transform the Indian and Defense and Aerospace sectors once utilized to its full potential.

Additive manufacturing has the power to unlock a wide range of opportunities. It uses a 3D printer to create a layer-by-layer “addition” of material which is digitally constructed. Different types of materials which are currently being used for the same are metals, ceramics, special plastics, synthetic resins, and etc. 3D printing not only reduces the cost of production of various components but also gives the power to manufacture locally with design flexibility. The technology significantly speeds the process of designing; this is mainly because there is no requirement of tools. Traditional manufacturing usually takes months to either acquire necessary tools and further produce parts and components or import components from various places. However, once 3D printers are acquired, which they might be costly in themselves, they would ensure a smoother production process. Hence, due to the combination of localized manufacturing and no tools, tailor-made designs can be produced to match the necessities of various industries.  

https://upload.wikimedia.org/wikipedia/commons/thumb/7/75/MakerBot_ThingOMatic_Bre_Pettis.jpg/220px-MakerBot_ThingOMatic_Bre_Pettis.jpg
Figure 2: A typical 3D printer. Source: Bre Pettis via Flickr

India is gradually growing with respect to its utilization of 3D printing technology. In 2014, the 3D printers market was at an early stage with just 200-500 combined workforce of engineers, designers and sales representatives. Currently, start-ups are springing up in places like Bangalore, Chennai, Mumbai, Visakhapatnam, etc and they are producing essential parts for sectors like the Indian Navy, Air Force, ISRO and the HAL.  India’s 3D printing market is projected to reach $79 million by the end of 2021, while the global market is at around $15.8 billion, which suggests that India has a lot of catching up to do.

Applications in the Aerospace and Defense Industry

The Aerospace and Defense Industries are keen to pursue additive manufacturing, mainly because of benefits such as weight reduction, cost cutting and to meet their highly specific requirements. The additive process uses less material to manufacture components and also ensures minimal waste of material. Overall reduced weightage means that less fuel would be used in aircrafts and hence result in better environmental compatibility. Let’s examine a few instances in India where 3D printing startups have assisted and provided the defense and aerospace sectors with unique solutions.

Recently, in 2020, the Centre-run defense company Hindustan Aeronautics Limited (HAL) had signed a MoU (Memorandum of Understanding) with Wipro 3D, the metal additive manufacturing branch of Wipro Infrastructure Engineering. The initiative would primarily focus on the design, development, testing, manufacturing, and repairing of aerospace components using metal additive technology. HAL is using 3D printing to manufacture engine components, although it also provides support to helicopter and rotary wing products. HAL also provides products to the Indian Army, Air Force, Navy, and Coast Guard. Speaking about this collaboration, Shekhar Shrivastava, CEO of the Bangalore division of HAL, said, “This initiative between HAL and Wipro 3D will create a unique synergy of capabilities that can accelerate the adoption of metal additive manufacturing in aerospace in India. Qualification of parts for aerospace is challenging as it would require prove out and extensive testing followed by certification by regulatory authorities which may also include flight testing."

Down south, Karnataka, which produces more than 65 percent of India’s aerospace-related components and exports, has taken a number of initiatives to promote additive manufacturing by setting up 3D printing clusters and sponsoring 3D printing startups. For example, through its flagship programme ‘Start Up Karnataka’, the State has given grants to ‘Deltasys E-Forming’, a Belgaum based start-up, to develop hybrid composite 3D printers. These initiatives are quite appropriate since two-thirds of India’s aircraft and helicopter manufacturing for the defense takes place in Karnataka, and 3D printing would revolutionize these processes quite rapidly.

On the other coast, Chennai-based 3D printing startup, Fabheads Automation, was established in 2015 by an ISRO engineer turned entrepreneur Dhinesh Kanagaraj. The deep tech startup designs and develops high-end carbon fibre helicopter blades for the Indian Air Force. Traditionally, carbon fibre parts are fabricated by laborious manual processes with a lot of fabrication time and money spent. Dhinesh also observed a lot of material wastage when he worked on carbon fibres at ISRO.  Based on this, Fabheads has designed an automated 3D printer series to eliminate material waste and also improve efficiency of production of carbon fibre. Sectors like the DRDO are currently approaching the company given these innovative methods of production.

3D Printing Saves the Day for the Indian Navy

Further, the Indian Navy has partnered with ‘think3D’, a Hyderabad-based 3D printing start-up, to produce spare components via additive manufacturing for both on and off-shore set-ups. The Indian Navy uses a lot of machinery on its ships which are imported from other countries and are quite old.  Whenever a component gets damaged, it is hard to replace it either because there is no availability of the part or because there is significant delay before a part is received. This often proved to be costly for the Navy since the machines would have to be kept idle before a spare part was replaced along with the fact that procurement of the parts was no less expensive.

This is where think3D had stepped in and supplied 3D printed parts to the Indian Navy, which were successfully tested and incorporated into its machinery. An example of such a 3D printed part, which proved to be of crucial help, is that of a centrifugal pump impeller- a key component for a ship’s operation.

https://3dprintingindustry.com/wp-content/uploads/2020/04/4.jpg
Figure 3: An original impeller (left) vs. a 3D printed impeller (right). Image source: think3D

The impeller is a rotating component and it is very important for a ship as it transfers energy from the motor to a fluid that needs to be pumped by accelerating the fluid outwards from the centre of rotation.  On ships, this component is used to import seawater into various parts of the ship for regular use of the crew. These impellers are required to rotate at high speeds for long durations and need to be very carefully designed. 3D printing was the best solution to replace these parts, given the speed of production and lower expenses.

Given all the benefits of 3D printing, it is high time for the Indian market to expand its 3D printing industry and utilize it to its full potential. There are many other instances like the one of the impeller in the Aerospace and Defense industries which can easily be solved using 3D printing.

Read More