1. Active bilateral contacts in the 18th century did not lead to the appearance of Chinese weapons in India or imitation of them , but very doubtful sporadic contacts in the 15-16th century did it?
What other Chinese artifacts at that time did not just end up in India, but influenced traditional culture and were borrowed as phenomenon?
2. The humanitarian visits of the fleet in the 15th century could not yet lead to a change in the cultural or any other landscape.
The Chinese Buddhist monks who traveled through India in the 5th-7th centuries would not be a much worse example.
3. Comparison of the guard on an Indian saber with the guard on a straight Chinese sword, the shape and decor of which have completely different semantic connotations besides the fact that Chinese sabers had completely different guards? Seriously?
It just seems from a postmodernist point of view that someone can sail somewhere and sell something there and everything will change at once. It is impossible to apply such an approach to the historical past and especially to traditional societies.