Update: Had to use Aadhar website as mAadhar XML was faulty and finally website generated Adhr XML ZIP was hashed correctly with 4 digit pass code.
Used it for next steps on NSDL Jiffy App and it seems to be working where it forced a VPA amount load from an existing Bank A/C but it failed due to some issue by @paytm VPI/ UPI quirk.
What're the ways I can use the card & account to avail the 20% offer?
How to charge/ fund and then pay the bills?