help me please

I am in PCC and done 15 months Atticleship. I want to convert into IPCC.

My question it that after clearing 1^st group of IPCC is it compulsory to join my old CA for further Articlship. I don't want to join my old CA. I want to join another CA for my further articleship.

If yes then what is the steps to convert my PCC into IPCC? I HAVE PURCHASED PCC TO IPCC CONVERSTION FORM . Is I should also fill form no 9 for termination?

Please help me.