Driving on indian roads is a life thrilling experience !
I never saw any speed limit indication as the road condition and the engine power of your vehicle are the two parameters which will determine your speed !!!
Then, how long you stay alive is function of the dexterity and experience of your driver !!
The main problem is in fact the speed differential of the several vehicles whuch are tracted by human, animal or engine power...Typically, our minibus was often overtaking a scooter or a biker, busy himself to overtake a camel cart, while we were simultaneously overtaken by a jeep or an (empty) TATA truck..... Of course, most of the time, you could observe, in front of you, the same overtaking scenario occuring, and ...for the coming 5 seconds, you had nothing else to do than holding your braith, or even, sometimes, thinking to a nice reincarnation..(in case the Hinddhus were right....)