It is the same rule for the Vodafone and Airtel also. And, BSNL or any other telecom cannot force you to renew. Amazon Prime is the territory of Amazon and Amazon cannot force you to continue.beware of terms and conditions, read them properly. last time i saw this offer it said they will start charging for amazon prime subscription yearly from second year onwards. im sure they will make it hard to cancel it also.
It will take 3 clicks to cancel it and just in case if your card gets charged? Let me know. Will help.