Is honours degree necessary for gradution and if astudent doesnot get honours degree then it has no value of gradution degree without honour

No it is not necessary

Hounor degree is done only in one subject. Example B.Sc( Honours) Maths in this only maths will be your subject. But in regular B.Sc you will have to read all the subjects.

Dear Mohammad, There is no necessity to have Hons Degree for Graduation. Even any Pass degree is equal to graduation. few offer Hons like JNU , BITS etc but most of the universities in India offer Pass degree. So u need not worry for Hons and pass degree. Good luck !