Hello Shri Malisetty,
I read PMBOK 5 during my first attempt but since exam changed I had to start all over again.I start studying at my work 2 hours everyday in weekdays and 5-6 hours Sturday and Sunday for almost two months.I read PMBOK and Ritas book in that time and spend lot of time on RMC fast track cloud for over thousand questions.
Then I used my three week maternity leave for studying at the end and all that time I spend on PMP Exam Simulator. Every exam I took for 4 hours I spend 6-8 hours reviewing all the question right and wrong to understand .After few days if I took same exam that I got 60% before it will be around 80-85 in second time.
I hope it helps make Sure you spend enogh time PMPrep cast is really great product.
Good luck to you..