Hello, tmsanjuprasad, My parents lived in Tumkur and I am very familiar with the town. Nice to talk to you. What you have is a condition called Motion Sickness . Whether you travel by car, bus or plane , this can happen in some individuals. This is due to an imbalance in the inner ear due to motion. Most of the time, the vomiting stops as soon as the motion stops. Some people, the symptoms can last for two or three days even after travel. The treat ment involves the use of a class of drugs called antihistaminics, kind of medications used for allerggies. Examples are Benadryl,Bonine,Antivert,Dramamine . Some of these are available over the counter. Your drug store pharmacist can help you choose a product for you. You should take the pill about 30-45 minutes before you get on the bus or car. Effects usually las t for 3-5 hours depending on the dosage. If it is a very long journey, you may to repeat the dose. Only thing you have to remember, the medication can make you sleepy. You have to bbe careful about that. There is also a patch that you can stick behind your ear called Scopalamine patch (Transderm scop) which is longer acting. If the symptoms persist or get worse you should see the doctor to make sure you don t have any inner ear disease or any nervous system disorder. Wish you the very best.