1. Buy bottled water. If you encounter a supermarket in a big city, don’t miss it (Indian society still has a tendency to boycott hypermarkets, and there are small shops everywhere). It will indeed be more authentic than the ones from small stalls. .
2. Buy a long scarf locally. It is very cheap. Twenty or thirty yuan is not bad. There are many styles. It is very effective in preventing sand and dust (the air in North India is very, very dirty, even worse than in Beijing), and preventing cold (the temperature in North India is usually 4-22 degrees in winter, and the temperature difference is very large in a day). If you take a train sleeper with ordinary seats And car sleepers can also be covered (generally not very clean).
3. If you are a low-budget backpacker, please bring a sleeping bag with a liner. The sheets in small hotels are sometimes not very clean.
4. Go to the "Foreign Ticketing Center" at the train station in a big city and buy all the train tickets for your itinerary (it is also easy to change the itinerary and get a refund). The pre-sale period for Indian train tickets is very Longer than the length of your visa stay. There are special ticket offices for foreigners in Delhi, Calcutta, Mumbai, Varennasi and other large cities where tourists are concentrated.
5. Diarrhea usually occurs inadvertently at a certain time, so do not take medicine randomly. The best way is to fast, eat only bananas (extremely cheap), and rest for two days. Most people will be fine. If not, see a doctor immediately.
6. Indian scammers are not as scary as Chinese scammers. You only need to "turn a deaf ear" to them and move forward to get rid of them.
7. In addition to eating, you must bargain hard for accommodation (hotels), transportation (various motorcycles and taxis), and clothing (various beautiful handicrafts). COME ON, Indian businessmen will not Angry.
8. If you are a girl, prevent Indian men from taking advantage of you - there is really no need for short skirts or sleeveless ones. But there’s really no need to “don’t talk to Indians”, otherwise why would you go there? To be honest, it is interesting to chat with Indians. The educated class are more reserved, but if you have the cheek to talk to them, they will also be very enthusiastic.
9. Try the food from the north and the south. Personally, I think the THALI from Gujarat and the BIRYANI (curry rice) from the south are both delicious. If a restaurant serves fish, be sure to eat it because very few restaurants serve it and it's always chicken that's hopeless. When passing by the market, you can buy some cucumbers to supplement your vitamins.
In big cities or tea garden areas, you must go to have afternoon tea. A pot of good tea + two slices of delicious cake cost less than 15 yuan.
Supplement: I agree with the answer given by @Panning Ling. I have forgotten about the wonderful thing called lassi, which is yogurt. It is definitely the most delicious food in India. Don’t miss it if you see it. In addition, India’s local flavor ice cream, the MASALA spice flavored Kulfi, is also very delicious.
If there is too much rice, noodles and toffee, even though there is less meat, you may still gain weight, so be careful.
10. If you are really tired of curry, go to the Tibetan community where you can eat noodles, noodles, beef, flower rolls, steamed dumplings and even stir-fried vegetables.
11. If you run out of US dollars, you can withdraw money from HSBC with your UnionPay card. You can check the address of HSBC in the city you are going to.
12. Prepare a smartphone, buy a VODAFONE or AIRTEL SIM card locally, and buy 1GB or 2GB of EDGE monthly traffic, which is enough for you to connect to your computer to send emails, browse the web, and chat on QQ, but It’s only 10 to 20 RMB. 3G is too expensive and there is very little WIFI in India.
13. It is still important to have a good guide book, especially since there are more people here than Chinese, which can easily make you confused about the environment.