Congratulations in advance, On your Waggie Kalyan.
Pioneer HU is good. Will cost you Rs.9000
Front JBL GTO 609c will cost you Rs.7000
Rear JBL GT6 s366 will cost you RS.4000
You can add an amplifier which you can place under Front seat. I think there is a storage box on which you can keep it under the front seat.
The JBL GTX646 is a 4ch amplifier and will cost Rs.9000.
So, According to you, The cost would be Rs.29000!
If you get a 2ch amp, You will be able to connect it only to the Rear/Front speakers.
If you get a 4ch one, You can connect it to all the 4 speakers. The result would be crystal clear sound even at high volumes.
I would suggest you to go for this (All things by pioneer)-
Here is the link for the things, If you are on facebook, Check it out- http://www.facebook.com/media/set/?s...type=3&theater
A HU powered with usb and sub-out
oval speaker-300w 3way
4 inch co axial speaker
subwoofer amp gm3500t
pioneer enclosure subwoofer.
This setup costs Rs.18000. And is damn reasonable at this price. Maybe you can remove the sub from the list and the price will be 15000Rs or even less.
Here is the link for JBL site- India JBL
And for pioneer- Car Head Units