It is new bank and as other private banks, you also get welcome kit, in which you get atm card, passbook and net banking credential kit.
In which, you need to login in your new banking within days, otherwise it will expire and you will not able to access.
Good news, you can get your new password by visiting official site. You will get otp on your registered mobile and can set your new password.
How to register
Go to website, find internet banking page and click upon register then it will ask your account number and mobile number and DOB and OTP will come on your mobile number, just fill it on required field.
Now you need to set information like your desired password, security questions etc.
Username will be your account number.