Reliance Communications — Unsubscribe from Agricultural tips related calls

Myself Mr.Mahesh hereby would like to unsubscribe or opt out from the agricultural tips related calls that i am getting since last 14 months on my mobile number [[protected]] for 2-3 times daily.
Please stop calling me on this number.
It's irritating.
I have not subscribed to any service like this.
Even though I have blocked numbers from which I got calls still calls haven't stopped.