Hi @Muldeep_Chawhan On Dhan, it will show PIN if your existing session needs additional validation to continue or extend it.
Dhan previously had a password + pin version, however as result of newer regulations of 2FA - we had to shift it to the current one to comply with same. We have written a detailed post about this here - Two-Factor Authentication (2FA) is coming to Web Platform (Dhan & TradingView)
Now, I’m sure you will ask how another broker does it. Well, we don’t know and can’t comment on their practices. We have to ensure we stay in compliance with the regulatory guidelines as we understand them.