I received the quote from PCB Power today and the quotation is quite expensive due to 6 layers. (The idea to fit it in a ready made enclosure to save cost is ironically going to increase product expenses :P ). Also due to the minimum PCB size requirement of the manufacturer being 20mmx20mm we had to go with panel PCB with 5 PCB in each panel. So i have placed order for 5 PCB. Still have to do payment through bank transfer as their payment gateway does not have support for my company bank netbanking option for online payment.
Expected delivery by 15-April-2017.