Nobody is claiming that India is already a shipbuilding giant or that it has anything close to China's manufacturing scale today. India's commercial shipbuilding share is indeed below 1%, and that is exactly why India is trying to expand the sector.
But using India's current shipbuilding share to mock the idea of India becoming a major manufacturing or shipbuilding hub is a rather simplistic argument. India already has strong global positions in areas such as pharmaceuticals, IT and telecom services, engineering and business services. For example, India supplies around 20% of the world's generic medicines and has a significant share of global IT and telecom services.
India still has a huge amount of catching up to do, particularly in heavy manufacturing, industrial supply chains and commercial shipbuilding. The question is whether India can significantly increase its global share—not whether India will suddenly overtake China tomorrow.