Its a mcdeliveryonline.com offer, to get coupon of Rs 50 we need to sent a SMS to 09664266000
SMS format should be:
MCD5 digit number to 09664266000
Example: MCD 02242 to 09664266000
After getting coupon code, we can recharge using credit too and while recharge you can select the 30 Rs off coupon on recharge of minimum 50 Rs and that coupon is valid on Freecharge App only.