I read this some where in our forum posted by member "desikivaat",so i am updating the same
If you had pre-assesment by AIPN & then they asked you to fill up application form & send to AINP after which u received file number then you are in old process & if u straight away sent an application to AIPN without any pre-assesment by AIPN and got file number then u belong to new process.