AIIMS Delhi does have its own rules and regulations policy but adherence to these is rarely seen within the campus. A few hostel rules included are

1. You are prohibited from installing your own AC, but almost every room has an AC.
2. You are not allowed to make any modifications in the room but most students renovate their rooms as per their needs.
3. The rules prohibit students from inviting other students to their rooms without permission but even students of opposite gender can be seen together in the same room.
4. As per the hostel rules, AIIMS students are not allowed to bring electrical appliances but most students have installed their own refrigerators, microwaves, and toasters. 
5. The hostel prohibits students from staying with their families at home but some residents of Delhi go back to their homes daily.

All in all, AIIMS Delhi hostel rules are just for formality, and rarely does the administration implement them.

Before I tell you about the subject-size strategy for AIIMS Delhi admission, you need to realize that clarity of goals and a very high level of dedication are prerequisites to getting admission. You should be adamant about AIIMS Delhi and motivate yourself in such a way you end up clearing it. 

For subject-wise preparations, you can refer to the below points

Biology: Only NCERT is sufficient for Biology. Every line and diagram should be given equal importance as questions can come from anywhere. Additionally, you can practice MCQs from books like MTG NCERT at your fingertips or any other available to you.

Chemistry. For Physical, you only need some formulae and knowledge for its right application. You need a strong grasp of chapters like thermo, equilibrium, solution, and electrochemistry. Inorganic chemistry needs to focus only on NCERT while for organic, concepts are the key. Additionally, refer to MCQ books like MTG or Arihant.

Physics: First preference is always NCERT followed by S. L Arora or HCV or DC Pandey. Choose one but master it completely. For further preparation, you can practice from previous years' NEET and JEE questions.

GK: Don’t underestimate this portion as it’s the scoring area that tests your common sense and social awareness only,

So, clearing a competitive exam requires 

• 50% determination
• 40% hard work
• 10% luck

So be prepared to give your 90%!

Generally speaking, the AIIMS Delhi mess food is like any other mess food and is not superior in any specific way. A few distinguishing features include

• More than one mess in a boys' hostel that enables you to try a variety of foods 
• A night mess that caters to your late-night cravings.
• A 24/7 coffee shop that serves decent food at reasonable rates.
• A Nescafé that serves great coffee
• There is a mess that requires monthly payment while another mess wherein you have to pay as you eat on a regular basis.
• Variety and quantity-wise, the food served is decent.

Overall, AIIMS Delhi mess food is decent and edible enough to survive 5.5 years.

Talking about official out-station trips, none of the AIIMS institutions send their students on official out-station trips. 

AIIMS Jodhpur sends its students to various inter-college fests, for example, Chiasma (AIIMS Bhubaneswar), and Silhouettes (AFMC, Pune), among others. The same goes for other AIIMS institutions.

Regarding the annual freshers’ trip to Shimla, the trip is planned by the Student Welfare Union of AIIMS Delhi. Thus, it is not an official trip and is organized by a student body. AIIMS Delhi has been in place for a very long time and so while other institutions do not have such a tradition in place, the student body at AIIMS Delhi follows it.

The total strength of students in AIIMS is 1788 students registered on the Youth4work platform. Out of these1788 students, there are 

• 783 males
• 609 females
• 396 students haven’t specified their gender

While analyzing the male-female ratio, the unspecified students were not taken into consideration. After the analysis, Male to female percentage is found to be 56%: 44% in AIIMS.

The male-female ratio of the previous years has been tabulated below 

The life of a PG student at AIIMS Delhi is full of new learning and more exposure. Everything that you missed in your MBBS will be taught now and more importance is given to patient observation. 

• You will have to wake up quite early around 7:30-8:00 am.
• After grabbing a quick breakfast, you will have to run to the OPD and observe the patients along with consultants and faculties, till almost 2 pm. 
• If possible you can have a quick lunch and then proceed to the old cases that continue till 4 pm. 
• Once you are done with the old cases, you have to rush to your ward duty which continues till late at night 12 am.
• After this, you can come back to your hostel room and wait for the morning so that you can repeat the same cycle.
• Amidst this cycle, there are emergency calls from SRs, and faculty to observe some specific cases, surgeries, and procedures in OTs.

The second year witnesses a more emphasis on academics and students can be seen spending a major time in B.B . Dikshit library. You will be busy presenting your Journal and attending classes. 

The third year is even more hectic as you have to prepare for the final exams in addition to the already hectic hospital duties. Also, you will have to submit your thesis 6 months before passing out. 

So, the life of a PG student at AIIMS Delhi is extremely tiresome yet rewarding as you go through millions of emotions, manage, frustrate, and still enjoy the challenging environment.