Hai I am learning driving from the past 10 days it is

Hai,
I am learning driving from the past 10 days.
it is about to complete within 15 days.

I am trying to buy an used car which costs below Rs. 50000(Fifty thousand rupees), because by using the old car i want to survive for 6-12 months so that i can get much experience. Then i will go for new car.

But problem is while searching for the car with in the budget, i am getting calls from cars which are registered around 1993, 1992 and 1994.

I came to know that the life time of car will be 15 years. Please suggest me in this problem.

And also please give the information that what are the things to taken care while buying an used car.

Thanks
Ramesh