Tnvat - generation of c form

Dear expert,

We have filed revised return for the month of June 2016 yesterday as the code number wrongly changed in the previous return.  so revised return filed.  But the C form is not generated after entered the correct code number.  May i know whwther is there any time frame to generate the C form in the website under TNVAT ie ctd.tn.gov.in.

Kindly answer us.  Expecting from experts.

thanks 

n kprakash