On your reference I will tell you step by step procedure to re-generate HDFC Bank, pin so that you can follow the same.

Here is the procedure

Go to official site of HDFC Bank which looks like this

HDFC Bank



There at top right hand side page
You can see section of way to bank
There click the option of net banking
A new page will open there at middle right hand side page
Click the option of re-generate pin
A new page will open which looks like this
There fill the required information

HDFC Bank, re-generate pin



Address:-
HDFC Bank
1st Floor,C.S.No.6/242,
Senapati Bapat Marg,
Lower Parel,
Mumbai - 400 013.