Dear Likhita,

You don't have to worry about this just go to this link and enter your email ID with which you fill the form you will surely get back your password.

link: https://nalanda.bits-pilani.ac.in/login/forgot_password.php

or else contact them in these numbers between 9 a.m to 5 p.m. They will guide you. Contact no.:01596-242205, 01596-515330

or else you can email them stating your problem. Email ID:admnoc@pilani.bits-pilani.ac.in

I hope these are some ways you will recover your password.

Good luck.