Hi shahidali,

I can help you with a design which you can do it yourself using MICRF 007 (RX) and MICRF 102 (TX). I have the chipset and the required crystal for you to go on 433 Mhz. I can also supply you with the PCB's for the project if you need, Some minor SMD parts you will have to organize from Bangalore.

Surely you must know or have some experience in soldering SMD parts on the PCB.

I am from Mumbai and if interested you can PM. Also if you are interested I can supply some advanced design (ready modules) using CC1100 and CC1000 chipset, but then you will require some sort of programing experience for these.

regards
Charudatt

p.s.: Rx made using 007 chipset from MICREL is the worlds simplest design for 433Mhz.