can anyone suggest me how to prepare for CPT?

Hi Pawan, you no need to do anything extra ordinary to clear CPT, just stick to your basics, prepare BOS books as many times as possbile, depending upon your calibre. 

The main key is not to neglect revising the whole syllabus 2-3 times.

Just prepare the ICAI books that will be very much sufficient for completion of CPT.

All the best Bro.

It is very good to know that you are highly motivated to complete the CPT on your own. But as you might be aware that as this is a professional program and  you need an emphasis on practical problems, case studies, and topics which need industry exposure. If you study only from books, you may be deprived of some of the vital knowledge which the expert faculties from Konceptca share as a practicing CPT, their tips, their suggestions for exams preparations and which is very helpful for the exams. The faculties are experts from the industry and careful attention has been paid to include all of the above while delivering the lectures so that all your doubts are resolved. The faculty share their knowledge and experience from the industry and give you exposure to scenarios which is sure to be useful not only for passing exams but when you become practicing yourself.

good luck Pawan, long way to go...keep your good work continuing...