A query of articleship

Hiee.. This is my first post as a query. I had query relating to my articleship. First i completed my artichleship on the month of april 2015. i thought it was completed and i went for job in my local industrial area. secondly in the month of may i recvieved a letter from institute an extension for 22 days. Now i want to continue it in other firm can i do it.Can i continue my remaining articleship in another firm at any time.i want to continue from this month.for this do i need to make a DD of rs.2,000 again as required for fresh articleship. Kindly help in this, Regards Anwesha Marwah.