InterGlobe Technologies — Resignation acceptance letter not provided

Address:	Gurgaon, Haryana, 110035
Website:	Www.igt.in

Hi All, I gave notice period of 30 days on 19th July 2016 however I got selected in MNC so I cut short notice period from 30 to 23 days resignation and relieved on 12th August 2016. Initially they provided me policy letter but company did not provided any thing in written or e-mail that my resignation is accepted and even on requesting they denied for same and asked me to come after 60 days for relieving letter. And I require Resignation acceptance to provide to another company. Now I have to show resignation acceptance in other MNC but I don't have any Acceptance letter and now I am asking it and they are harassing me. Is it a Company policy ? And please advice if any Legal action can be taken against the company