original, attested copies & translation of degrees;
enough money for arrival (taxi, accommodation);
letter of acceptance from JNU;
proof of enough money if self-financing student;
letter of ICCR if scholarship holder; and
ICCR scholarshipholders must inform a couple of weeks before their departure the Indian High Commission/embassy of their exact time of arrival in Delhi so that an ICCR car can pick them up at the airport;
MEDICAL
yellow fever certificate (WHO) if coming (even in transit) from South America, Papua New Guinea or Africa, in the last 6 days;
Have you gone to the dentist's in the last six months?
Do you have a card on you with your blood type?
Have you received all necessary vaccinations?
Do you have a card with all your vaccinations, their dates and validity?
Have you prepared a personal pharmacy with the medicines you usually take? (In India you will find all types of medicines, but perhaps not all the brandnames you are used to, so it's a good idea to ask your pharmacy to give you a description of the effective ingredients of the medicines you need.)
MOST IMPORTANTLY: a certain stress-immune sense of humour.