Mohali

Hello Nishar Ahmed, it's a very tough query to answer. There are different reasons. Firstly it's an institution where research in basic Science is the motto. This makes it unfit for normal recruiters. Secondly even students do not want to get placed not only after graduation but even after PG as almost every student opts for PhD. This results in very skewed ratio of just handful of students out of more than 100 getting placed. 
Frankly speaking, no one joins this place for getting job after undergraduate postgraduate or doctoral studies. Research oriented work is preferable to students. Hence many get opportunities to even work abroad as interns. 
However to give you information about placements and recruiters, I am attaching a link:-
https://www.shiksha.com/college/indian-institute-of-science-education-and-research-mohali-22265/admission
Best wishes to you.

Hello Nishar Ahmed, admissions to Indian Institute of Science Education and Research can be taken via any of the three routes, by appearing for JEE advanced examination or KVPY or through the admission test conducted by this Institute itself. You can definitely get admission in this Institute since you have scored 70% in your 12th standard while eligibility criteria for general category students is kept at 60%. Of course with 70% you cannot take JEE advanced since there the eligibility is at 75%. But you can follow the path of entrance exam conducted by this Institute. To help you further and to give you detailed information I am attaching a link below:-
https://www.shiksha.com/college/indian-institute-of-science-education-and-research-mohali-22265/admission
Best wishes to you.