Hi Raj,
Luckily i have a very good mentor for me in Hyderabad "Goldy" and also very good friend (owner of Eight Audio). Goldy helped me in calculating the size, gave me tips and was a kind of mentor from my scratch start.
Eight audio had good contacts in terms of carpentry and painting so once the size was finalized by Goldy; eight audio helped me to hire carpenter and painter.
BTW Amplifiers, crossovers building is done by Eight audio.
Thanks to Eight Audio...
I am yet to get my subwoofer amplifier may be next week or by month end i will test the entire set up.
Thanks,
Hari