Well , I must say ,Time is as important as the cost is .
Anyways , here goes the procedure in detail
You will have to clear about 6 exams and about 210 to 220 hours of flying which includeSingle engine with instructor till the time the institute is confident on you , so fly amazingly
The 6 exams are :
Technical general : it is a general knowledge about how an aircraft works
Technical specific: it's study about specific aircraft which you are doing your college on
Hope you understand,