I have got more benefit today for this laptop purchase. Paytm had sent some coupons with the coupon code used for the cashback. They were not applying before but they have started working today. I have got the following coupons.
Grocery 600 Cashback for 2 months = Rs. 1200
Mobile Recharge = Rs. 500
Laptop Bag = Rs. 1200
Flight Tickets = 2x750 cashback = Rs. 1500
Movies 300 Cashback for 2 months = 600
I have used the grocery coupon today to buy 2kg Bournvita today for Rs. 650 and got Rs. 600 cashback. I have also used the recharge coupon today and got Rs. 500 cashback.
Forgot to add in the previous post that I'll be claiming input credit benefit in GST as the above laptop expense is a business expense.
GST refund should be around Rs. 4000
18,589
-4000 (GST benefit)
-1200 (Grocery Paytm)
-500 (Recharge Paytm)
-600 (Movie Tickets Paytm)
-1200 (Laptop Bag Paytm)
= 11089 (Net Cost)
@Vyom Bank cashback is on list price as
@whitestar_999 explained.