Packing sensibly is essential for your India Overland trip. One backpack and one daypack are needed and these can weigh no more than 25kg. It is compulsory you take a backpack (and not a suitcase) as the Van store then in lockers or under the carriage (the locker dimensions vary so please ask your consultant). The airlines implement a 20kg per person limit on international flights for your luggage (your main bag) and a further 5 kg for carry-on luggage (your day bag). A good idea is to include a spare bag for curios that you may purchase, but don't forget to include this in your weight for your trip home.
Take along comfortable, casual and semi-casual "wash & wear" clothes. Cotton is a good material for when it is hot, and fleece for when it gets cold. Pack clothes that don't crease easily as the laundry facilities are limited. Find clothes that can be mixed and matched easily and are colour co-ordinated. A great item of clothing is zip-off pants. These double-up as shorts or trousers and are useful for when the weather changes. Reversible clothes are also very convenient and will help to reduce space in your bag.
Medication/first aid kit: