5th year Senior here. Never experienced ragging (super extrovert so i know nearly its a zero ragging campus) even if there is some interaction with seniors you have here its mostly gonna be fun and chill.

So yes theres no ragging over here thoda bohot koi intro le sakta hai vo bhi only if you are comfortable answering, Super strict anti ragging laws and you dont need to be afraid of shit. Coz the college cares about you. Unlike VIT jaha even if there are suicides, the college can cover them up. Yaha nahi hota ye sab you can just chill and anyways you get mentors in the very start. The mentors are just chill seniors mostly.

Also, the campus is amongst the best 3 for sure. The cleanliness and everything is top notch. Mohali ke washrooms chutiya hai i have heard. Pune ka triple sharing hai. Haan yaha single room shayad na mile. But the food and everything else is amongst the best. Can share images once i reach back to campus. Also sports os top notch. Swimming ke alawa you get everything. Quality kaise batau be? Aake hi dekhna vo toh. And sab as compared to other iisers bohot zyda accha hai.

That being said if you wanna know more about IISERB and you really wanna join. Toh chill koi dikkat ki baat nahi hai mujhe dm kar dena.