Hello Senthil,

GATE exam is conducted annually by IITs for admissions to various IITs, NITs, IIITs, GFTIs and other colleges that take admission through GATE. It is also used for recruitment by PSUs. 

As for your question, you should be able to get admission in material science course in IIT BHU.

For more information, follow the below links:

Https://engineering.careers360.com/articles/gate-cutoff-for-iits

Https://engineering.careers360.com/articles/gate-cutoff-for-iit-bhu