GeoEdge Technologies — Forcing me to work and not giving my certificates

Address: South Andaman, Andaman and Nicobar Islands

I worked in geoedge technologies as regular since feb 15 2013 and i resigned my job and gave notice period of 3 monthsand in between they offered me to work as part time, whever they give work i have to work, but i ask them about my experience certificate, pay slip, pf account no, they refuse me to give and saying that i have full fill their work which i was never taken as assigment, and they asking me to give notice period of three months, , but im not working regularly so why i have to give notice period