Anna University — convacation certificate need

Address:

Coimbatore, Tamil Nadu

I m karthick, i had finished b.e mechanical engineer in 2014 in Dr. Nallini institute of engineering and technology, I m cleared my arrear in 9th sem Nov 2014, I get my over all mark sheet and provisional certificate also except covaction but now I m need my covacation certificate for my abroad job so kindly help me sir. My visa process is totally stopped please help me