Change of firm name

VARUN RANJAN (Student) (231 Points)

23 January 2015  
can I edit/modify/change my firm name registered under VAT & CST. (I hv been registered with name Ranjan enterprise bt my purchase bills are with name of Ranjan Enterprises, would this effect my taxabiliy ) please let me know of the process to change my firm name. please reply. !!!! URGENT