How is the regular environment, outside classes? Student lives, student clubs and things like that?
There is a basket ball team, a bhangra team, and any other team you can imagine. the teachers strongly encourage to join in after school activities. If there isn't a team, you make one.

They have independence day/republic day parades where our school participates in marches. Our boys basketball team won intercollege so we got a holiday.
I like to hang out with the RIs a lot because they do more fun things. I joined Dramanon, a drama club which puts on wonderful plays!
I go to learn bharatanatyam in Udupi and learn classical music. I spend about a hr each on saturday and sunday for these.
I'm currently learning Kannada so than I can communicate with patients in the hospital. They give you a better response if you can talk to them in their own language.
there is MSAID--they go help out in orphanages about 2/more times a month, they do lots of fundraising and support hospitals.
The Kasturba Hospital recently opened up a volunteer branch where they allow us to go in for a hour or more a week to help them out.
One of my friend belongs to an astronomy club.
And how much time do you spend on academic activities /day?
Hmmmm...Not as much as I should.
The first 2 semesters of basic science is just memorization. This year is more of applying what I learned. I find these classes lots of fun. This time we lucked out and got great professors from the main campus.
Some days I'm done by noon and some by 4pm. So I just go over the lectures and read the related textbook material. So I'm done by 7:30, go to dinner.
Thats all it takes me on short days. Long days takes me up until 9pm or more. I usually have time to read a few pages of my favorite novel by the end of the day.
THIS IS IF I KEPT UP WITH STUDIES EVERY DAY!
If I skip a day or two, I find myself scrambling to finish it on saturday nights/sunday nights.
Again, friday, satuday evenings are when I do my extra activities.
I still wish there are at least 10 more hours in a day so I can completely learn everything...

The Night life:
There are a few night clubs. My class goes to Goa/bangalore/mangalore the long weekend after sessional exams.
I don't know much about it because my idea of a wild night is reading a novel until 2 am