Manish Kumar is currently working as Assistant Manager in Submarine Design & Engineering Centre of Larsen & Toubro Limited in Mumbai, India. He graduated from Cochin University of Science and Technology, Kochi, Kerala, with a Bachelor’s Degree in Naval Architecture & Ship Building in 2018. After graduation, he joined L&T Defence as a Graduate Engineer Trainee. Over the past five years, he has been working in the fields of structural mechanics as well as hydromechanics of underwater vehicles. As part of the concept design through preliminary design of L&T’s own SOV (Special Operations submarine) project, he has undertaken design and analyses of the Pressure Hull and Pressure Proof Structures of SOV. He has also carried out calculations pertaining to buoyancy, trim and stability of the submarine, balancing angles, inversion speed, turning circle diameter etc. for different regimes of operation. He has also undertaken estimation of submarine resistance and optimization of hull from using STAR CCM+.