Will Samsung Galaxy Nexus i9250 work with Indian SIM Cards?
The phone specification says it supports the following frequencies:

2G Network    GSM 850 / 900 / 1800 / 1900
3G Network    HSDPA 850 / 900 / 1700 / 1900 / 2100

I think this is almost all the frequency, so the phone should work in India.