Hello, I am from India as well and have thought about importing a Sprint Note 3. But, the important thing to note here is that Sprint is a CDMA Carrier so it may only work with Reliance or Tata Indicom. Another important point is for using it in India, it needs to be unlocked. I have come to know that the unlocking of Sprint Note 3 - N900P can be done only through Sprint which means we may not be able to get it unlocked in India. Also, one more thing we need to check is whether Sprint Note will support GSM and CDMA Bands in India. I think it will not. I would be thankful if you find some more information about the Sprint Note 3 and post it on this forum for the benefit of all India FM Radio Lovers on the Smartphones.
I have a Sprint LG G2, and there is a ROM for it that seems to effectively turn it into a GSM International phone, so I guess CDMA just becomes an un-needed add on.