Icai letter number

Generally it is mentioned on the top or in reference line.

If you are not able to find it, please share the scan copy of letter.

Thanks.

Dear Sir, 

Thank you for your response. 

Attached is the scanned copy of the letter (Permission to study B.com. Course)

Hi Arpika,

Reference no. Is not mentioned in the letter. So on your form you can mention the date of letter and attach the copy.

Thanks