I assume you are asking about the culture of IIM Ahmedabad hostels, and not their aesthetics. 

The hostels at IIMA are excellent and filled with all the necessary facilities. They are referred to as dorms and not hostels, and 25-30 students live in each one of them. Dorm mates are very supportive towards each other. 

They wake each other up for classes, help each other in preparing for quizzes, and genuinely care for each other. It feels relaxing to return back to the dorms after tiring classroom hours. Chatting and gossiping with dorm mates is always fun. 

The hostel culture of IIMA is very warm, welcoming and friendly. The time spent over there is truly memorable.

You’ll get most of the required items at Kabir General Store in COS. But you can still bring along these things, especially if you have spare ones at home-

1. A mattress, pillow and bed sheet(s).
2. A bucket, mug and soap container.
3. A door lock. You’ll especially require one if you have been allotted a single room in Hostel J.
4. A table fan/mini cooler.
5. A mosquito repellent, eg. Good Night.
6. Some hangers for your clothes.

These are the things you can bring to the Thapar University hostel as a fresher.

Freshers are allotted these three hostels(the first two are for boys and the last one is for girls): Vishweshvarayya Hostel, S N Bose Hostel, and Gandhi Smriti Mahila Chhatravas.

My brother lived in IIT-BHU Hostel and got to experience all the good and bad of hostel life at IIT-BHU. According to him:

ROOMS

• The rooms are very small and are shared by 2 to 3 people
• On first entering, you will not like the rooms at all. The rooms are covered in spider webs everywhere and some of the old used belongings from the previous occupants
• You will need to clean your room and get all the required items
• A bed, table, and chair are provided by the hostel administration
• Cupboards are in-built and you have to share them with your roommate
• The rooms have hardly any space, but the lawns are big and the hostel corridors are long
• There’s a sufficient number of washrooms on each floor. Each floor has water coolers.

OTHER FACILITIES: Common rooms, Canteens, Mess, TV Room, Badminton court, TT tables, and lawns. There’s also high-speed internet which can be connected through both, Wi-Fi and LAN

FOOD AND HOSTEL CANTEENS- The food is above average, better than other colleges and most of the other IITs. 

Hostel canteens close between 2:30 A.M to 4:00 A.M. Students can still obtain food from within the campus at any time

HOSTEL TIMINGS- Apart from the first few months, there are no in-and-out hostel timings for boys. However, for girls, there is a strict time restriction, 10 PM.

HOSTEL STAFF AND ADMINISTRATION- The hostel staff and administration are friendly and supportive. You can also ask your Maharaja to make a dish that you wish to eat.

You will certainly face some challenges as you try to adjust to your new life. Living in and sharing small rooms with strangers will be difficult at first. You will have to learn to manage with very basic facilities, but as you make more and more friends at your hostel, you will come to enjoy every day that you spend there.

Also, some of these experiences are subjective, while others can also be different for a different academic batch. My brother completed his graduation in 2018.

Hostel life at NIT Hamirpur is similar to that of any other college. Since my brother recently passed out from NIT Hamirpur, I have a better idea of this. 

• The students change their hostel rooms after every year so your roommates also change 4 times. 
• The serene surrounding areas make the campus a peaceful place to stay. You will always be in awe of the beauty of the campus. 
• The hostel has rigid restrictions on in-timing. During the initial semester girls and boys are expected to reach the hostel quite early. From the second semester, there are a few relaxations, especially for the boys.
• There are indoor game facilities like table tennis and badminton courts. There is also a pool table in the Neelkanth Boys Hostel for third-year boys. Also, there is a Common TV room where students gather to watch matches together. 
• Students can be seen walking around at night or enjoying the sunrise at OAT.
• Many talented students portray their skills at night performing for everyone. Celebrations like birthdays, festivals, and the World Cup become much better with friends.
• There are enough eateries for both girls and boys. Girls have canteens in their hostels while boys have Nescafe which runs till 2 am. There are many eating spots in and around the campus like Juice bar, Nescafe, Amul, HPMC shop, Ekta, Junction, etc
• Students occasionally plan trips to nearby areas like Shimla, Kullu-Manali, Dharamshala, Treks, and many more.
• The best part of hostel life is indeed the last-minute group studies a day before your exams.

The facilities and rooms do not define the quality of your hostel life but the friends you make there do! 

Freshers at BITS Pilani are usually given 3-4 days to explore the campus after hostel allotment and before classes commence. Here are a few things you should do if you are a fresher here

• Explore the campus instead of staying holed up in your room and meeting new people. You will make friends for life here so don’t hesitate from interacting with everyone around you.
• Initially, you won’t be able to go to the common rooms so instead you can spend time at Red Chillies, Ice and Spice, or the institute cafeteria if you're craving something tasty
• Once the classes begin, make sure to attend the lectures and tutorials.
• You can explore the beauty of Goa during weekends but refrain from involving yourself in alcohol.
• If you are tired of mess food you can order from Domino
• You can also stay in your room and install a DC++ client to browse and download all content on the DC servers.

So, as a fresher, there are several things to do at BITS Pilani Goa campus but personally, I feel you should focus most on socializing and strengthening your network.

For Boys, we are Given Double Rooms with Attached washrooms in the First year and Single rooms will be allotted in 2nd Year.

These Shared rooms are Quite Spacious and Well Furnished too. Each Room has a Balcony

Here is a balcony view from boys' hostel room

Here is a glimpse of the room

Here is the rooftop view

Girls hostel

In AIIMS Bhopal Single Rooms are Provided to Girls in 1st Year itself. Here is what a typical room in a girls' hostel looks like

The balcony view from the girls' hostel is also spectacular

So first-year girls get single rooms but boys do not.

First-year NIT Patna boys are allotted separate hostels with two/three-seater rooms. The rooms are not very great. There are single seater rooms also, but they are very small in number. There are three hostels for fresher boys- Sone Hostel Block A and B, Kosi Extension near Ganga Ghat, and Ganga Hostel. 

From the second year onwards, you will get a different hostel. There are mainly double-seater rooms in this one. Only 10 out of 500 rooms are four-seater. In this hostel, you will get to meet your seniors. 

The mess food isn’t good. Drinking water, common rooms, and washrooms are good. The premises have space where you can play underarm cricket, badminton and volleyball. In the fresher hostels, you won’t encounter any seniors. I don’t know much about the Girls’ hostel, just the name- Ganga Hostel.

Overall, the boys’ hostels are pretty average at NIT Patna. The senior hostel is comparatively better and new.

A close friend of mine shared a few pictures of her hostel room at JIPMER. This is Curie 1 and the little garden attached to it. My friend enjoyed staying at Curie 1 more than Curie 2 because the life here was more vibrant. 

The view from her balcony shows PG men's hostel and the two basketball courts in between

The room with the green curtain belonged to my friend and the first door towards the right is the washroom for the set of rooms that are in the corridor

This is the wash area with provision for drying clothes

This is what her room in Curie 1 looked like as a whole.

The rooms in Curie 2 are much bigger. 

I hope the pictures helped you get a clear idea of the girls' hostel facilities at JIPMER.