Cpt classes

Hello friends / Sir,

I am new to this field. I am planning to appear CPT. I am gratuate and working.

I want to join private coaching class for CPT in mumbai / pune.

now - please help me for  -

what is duration of coaching class ?

what should be reasonable fees for coaching class for CPT ? 

If I study through study material of Institute , is it enough ? or should i need any other book ?

Thanks. ;)