To get the discount, use below coupon code on Air India online shopping site when you purchase products. T&Cs Apply.

Goibibo Coupons:
HDFC Bank: Flat 10% OFF Code: GOHD10
Rs.800 OFF on Domestic Flights Code: FLT800
5% OFF on Domestic Flights Code: GODFLTB
Gocash Card One Way Flights Coupon: GOONEWAY
Gocash Card Round Trip Flights Coupon: GORETURN