Which mobile connection is best in chennai to make STD calls?

Question

I like to know which mobile connection is best (economical) in chennai to make STD calls to Kerala.

Answer 1

STD rates are same for all the mobile operators.  but its depents on the plan what you are having.  AIRTEL is the best as for as my concern

Answer 2

To Kerala, AirTel provides the most economic STD options, the details of which can be obtained at this link :

http://www.airtelworld.com/Prepaid_tarri...