Indian institute of technology IIT Guwahati is a Government engineering College and it is considered as one of the payment colleges in India but when we talk about it's Academics, then it is very worst in that case. Many subject are taught during first year which have no use in our career.
The only thing that is good about IIT Guwahati is it's infrastructure because the campus is located in hilly area.
Student engagement in this college is also very poor, seniors ragged so much to the juniors.
Placement record at this college only good for computer science and engineering and Electronics and communication engineering and other Branches has very poor placement. Less than half of the students placed in other branches.
Overall I will only recommend you to join this college if you are taking admission in top branches otherwise better to choose other IITs in you jee advance ranks.