Hi Ganesh,
I think 7k for just doors and work top is expensive. I designed my kitchens, (I've moved twice and used the same woodworker) had them made from solid wood, not just doors, whole units to spec, all appliances (Smeg, Bosch and Neff) and worktop and bought them in at between 5-8k before builders fees.
Where r u in the UK? I can give you a fantastic kitchen builder in Stoke who makes units to your spec and size from Oak or Pine.
He will deliver too!!!
I'd source the granite work tops myself if I was you, and the apliances. You can barter a good price then.
If you're interested in the speaking to the guy in Stoke I'll give you his name :)
L.