There are three ways you can reset your password. Below images will explain you in details to reset your password.
Sine Mobile App
Sine Mobile app can be used to reset password (Forgot Password), Unblock account and Reset 2FA questions.
Kindly note, feature of unblock and reset 2FA questions is available only in Sine mobile app.
NEST Trader (Desktop Application)
Once you click on forgot password, you will see the below screen
Enter your registered email ID, Date of Birth and Pan card number in capital letter
Click on OK
You will receive new password to your registered email ID
NEST Web based platform
Enter your Client code
Click on Forgot Password
After clicking on Forgot password, you will see the below screen
Enter your user ID, Email ID and pan card number in capital letters
Click on submit
You will receive new passwords to your registered email ID.