Articleship training is a compulsory training in CA curriculum which a CA student must have to be done for 3 years period of time. In some cases, due to some reasons, a CA student may not be able to continue the article-ship training continuously for 3 years in same Principle CA. The obvious reasons may be marriage of article or misbehavior of CA, major change in location of residency and others which are given below. Students may be seeking articleship transfer after 1 year or 2 years of training. But articleship transfer/termination is permitted by ICAI in only some cases which are given here.
The articled assistant who seek CA articleship transfer is required to get the consent of the Institute before getting Form 109 signed by the Principal. So, you must have to take the prior permission of ICAI before proceeding further.
The request for CA articleship transfer should be made on a plain paper, self-attested by the articled assistant, with recommendation of the Principal for transfer / termination of articleship to the satisfaction of the Institute.
I hope the message is clear.