HI,

i am planning to build a Plane for my electric setup.

Do i get any builders in delhi for consultation / guidance.

You might actually get good advice  at RCG.
http://www.rcgroups.com/foamies-scratchbuilt-428/

There are lot many building there

For foam ones, it is straight forward.  Download a plan, source biofoam, print the plan on paper, attach the printed papers together and stick it on the foam sheet, cut as per the paper template, use glue to fix the cut pieces together and reinforce (with CF rods, kabab sticks, cycle spokes, etc).

There are build threads here with plans (or links to plans), like : http://www.rcindia.org/self-designed-diy-and-college-projects/blu-cub/ .  The blue baby and blue cub seems to be advised for beginners by many.

If you are looking for plans, see these :

http://www.rcindia.org/electric-planes/depron-plane-plans/
http://www.rcindia.org/tools-materials-and-building-techniques/770-model-plans/

The procedure is similar even if it is coro based.  For even sturdier planes made from coro, see http://www.spadtothebone.com/SPAD/ . Go for something with "type" of "Trainer", and source out a corresponding electric power system.