Please Help: Filled Wrong 49 B Online For Getting Tan No.

Hi Everyone...
I have a query...

I have fill an online Form 49B for getting Tan No. but by mistake instead of writing First Name, Middle Name & Surname By Mistake I have Written The Firm Name In The First Name Box.... and done the online payment.

As now I have made a mistake so my question to you is :

Whether I have to Post that acknowledgment to NSDL at National Securities Depository Limited, 3rd floor, Sapphire Chambers,Pune.
OR

Do I will make a fresh Application and submit that one to NSDL .

The category For Tan Application which I have applied for is of Individual Category

Hope you will help me out & solve my this problem

Thanks in advance