Online Free Mobile Recharge using Pickzup:

Pickzup is another free online mobile recharge website that offers free Mobile recharge on participating in contests, participating in polls and surveys, playing games and reading mails from pickzup. You can also earn by referring your friends and your account will be credited with RS 3 for every your referral. Here you can also use the points for en-cash, DTH recharge, Data card recharge and for shopping online.

Pros 

Rs 3 on referral signup.

Rs 10 as Joining bonus.

You can also redeem earnings in the form of FREE DTH Recharge.

Supports all telecom operators.

You can recharge other mobile numbers also.

Free DTH recharges and Datacard recharges.

Also you can withdraw money.

Can use the points for shopping.

Cons

You cannot delete your account.

Supports only prepaid numbers

10 Credits is equal to 1 RS.

Minimum recharge amount is RS 20.

Maximum amount of recharge is RS 200.