The offer ask you to recharge for at least ₹21 to get recharge of ₹42.
How to avail this offer?
Go to MobiKwik add cash ₹21 or more.
Recharge your mobile/DTH with ₹21.
Go to MyAccount on MobiKwik.
Click on redeem code.
Send OTP to your mobile.
Enter the OTP and then promocode MOBI21.
You have by now availed the double the recharge offer through MobiKwik.
Please do return to aahafaiz once your recharge amount is over. I'm sure you would get some more interesting and exciting offer for new recharge.