Gurpreet, I'm afraid people have missed the very first question:
What do you plan to sell on Dealsbury??
An eCommerce site is no different than every other business in terms of business plan basics:
1) What are you going to sell?
2) Who are you going to sell it to?
3) How will you reach them, and what will it cost you to reach them?
4) What will they pay for it?
5) Can you make money at that price?
6) Why are they going to buy it from you instead of your competition?
If you really have answers to the questions above, then the technology part is easy, and many people can help you with that. If you DON'T have answers to the above, then keep your domain and do your homework to figure out the real answers to the 6 questions above. AFTER that, you can find many people to help you with the design and implementation.