There had been lots of hassles in the Indian customs regarding this ASIC miners import from China. Its been a while, but how is the condition right now? Is it easy to import now? talked to FEDEX they said nothing about problems, just acknowledged that they could do it with ease. If someone have done it recently, please share your experience. Let the community hear about it.
Fedex will never tell you things like that. They don't need to. If Customs charges anything, they will just levy the taxes to you. Customs handling is easy for them.
My advice: ask your own customs. Give them details of specifications of what you are importing. Also, check with the exporter, if they have shipped to India before they can tell you what to expect. But if it was difficult before I doubt it is easier now. You tried to consider shipping individual parts and set yourself up?
Perhaps better for you to ask the advice of miners in the Mining section, not here.