I need a r/c aircraft in newDelhi, which can lift 500gm extra and good battery, and additional servo channel to modified application,

electric powered
please also mention price,and content of your combo price,
i visit many sites, but right now totally confused, please help

That has to be a huge plane to carry that load.  Are you sure??!!

A plane like that to carry that load will need a minimum 4000 mAh 4S or 5S lipo, monster motor 32 or bigger, or nitro equivalent.  You must be a professional to handle those specs.