E SIGN PROBLEM

your question is not clear. what do you mean by MP application?

if digital signature is used for HO application then it will again be used for signing branch application also. 

give screen shot of the error you are getting. Your question is not clear what do you want to say?

MP Means Madhya Pradesh. When we are submitting application for Madhya Pradesh using E-sign facility, a 'Validation Error' is occured and not able to submit the GST application.

validation error occurs when PAN mismatch error comes up. Confirm whether Your MP factory is registered under various acts with same PAN number. 

If first name is not same in PAN database then validation error is shown. There must be some PAN mismatch with the DSC you are inserting otherwise this error will not arise