I disagree to some extent with the above experts. Once you give vakalat it is not possible to change the Advocate so easily. You have to obtain no objection from the present advocate. You have to file a memo before the court stating that the present lawyer is not cooperating and harassing and he is not giving his no objection. You have to give a copy to the present Advocate.
After hearing both you and your Advocate version, the Court grants permission of no objection. But you have to pay the dues of fee, if any, to the Present Advocate.
That is the procedure
Ravinder.p.