I have a reasoning that if they have assembly hub in India even if it's for exports, it could help to reduce prices to a certain extent, making it affordable and hence increase their market share.Eh ? Assembly hub vs actual market for their phones ? Why are you confusing the two ? This is a supply chain exploration.
Regardless of what they do, if they don't solve their SoC issues, sales aren't going to improve. Because the pixel fan base is limited to techies, nerds. For majority, it's still redmi, Samsung, Xiaomi and those bbk children.