Cwa inter exam application

Hi,

i'm a CWA inter student, i registered for postal coaching from chenni chapter, and currently working in bangalore, i just want to know that can i submit my exam application in bangalore ICWAI chapter, or i have  to submit only in chennai where i'm registered or If i send an exam application to KOLKATA, whom it should be addressed to / can i send it through courier becasue i heared that application should be sent only through post.

Pls help me out...

Thanks and regards,

Mohsin Khan