Articleship a headache

I AM TRAPPED . I DONT UNDERSTAND WHAT TO DO.

MY 3.5 YEARS OF ARTICLESHIP WERE COMPLETED IN JUNE 2011 AND I ALSO HAD A EXTENSION SO I CONTINUED BY ARTICLESHIP WITH THE SAME CA. MY CA DIDNT ALLOWED ME TO SUBMIT FORM 107 AND 108 IN TIME AND I WAS ONLY ABLE TO SUBMIT IT IN DEC, 2011. NOW I RECEIVED A LETTER FROM ICAI THAT MY FORM 107 IS REJECTED AS IT IS NOT FILLED IN 60 DAYS FROM COMPLETION OF 3.5 YEARS AND I HAVE TO RE REGISTER BY FILLING 102 AND 103. WHAT TO DO NOW ? DO I HAVE TO REGISTER UNDER SAME CA ? CAN I CHANGE THE CA ? PLS HELP