@Joules Applying through third party apps like phonepe, gpay etc is not third party application if demat account and bank have same PAN.
When there is mismatch, like demat belongs to the applicant but bank account is someone's else's, it is third party. Such applications were allowed in past but not permitted since May 2022. Sadly, reported going through even after 2 years of ban in some cases where upi mode is used for funding. It is not possible to bid third party application through Bank ASBA.
Hope it clarifies 🙏