AJIO’s official Paytm offer page says eligible users can get assured cashback up to ₹300 on purchases of ₹999 or more made using Paytm UPI or Paytm UPI Lite.
The page also says the cashback is delivered via a scratch card and that the offer is available once per user per month.
This is a payment-linked offer rather than a conventional coupon code, so it is best listed as NO CODE REQUIRED in your coupon format.
It is still a real active AJIO savings option visible on the official site.