First of all you should write complete question. And you should specify every details before asking for an answer.

But as you said you want to get a direct admission in MNNIT Allahabad or through interview process. If you are talking about ug course then no chance. Only way to get admission is through performing in JEE mains.

And also for pg , there is no such thing like direct admission. Only way is through giving the college exam or IIT JAM and if selected then you will be called for interview. 

Thank you