Dude, Chinese have up hand on this. Let me just give you some examples on what Chinese can do:
1. slow down the custom inspection for all goods being exported to india, including those power generators, communication devices, construction machinery, etc. this will slow down your economic development -- you need them but there is no affoardable alternatives.
2. provide more economic and military support for Pakistan. We don't need explanation here.
3. provide more economic and military support for the freedom fighters in india, encourage them to carry out more coordinated uprising against the regime. encourage them to seek formal Independence, guarantee them that China and its close allies will formally recognize them once they declare independence.
4. deploy more miltiary resource to deter india. this will create the image/feeling that China is coming, which in turn will force india to allocate more resources onto defense. the consequence is clear: less funds for education/health care/infrastructure development.
5. block all india related/initiated resolution in UNSC.
this list goes on pretty long. I don't think india is on par to do the same.
Come on dude...this is not the logic for which India should be worried about...As China is involved in all of these activities since decades....Its nothing new....