Adnan, ok, I see where you are coming from. Here is a circuit you can use as a starting pointhttp://www.electronicshub.org/ir-remote-control-switch/
But let me give you a few pointers to help you along the way- you can just detect IR from your LED but if is is just steady IR, your receiver can get fooled by the sun or light bulbs, etc- so usually you would have a chain of IR pulses at a certain frequency (here 5 KHz) and if possible make your receiver only respond to that frequency- if you really want to get secure, you can get ICs like HT12E (encoder) and HT12D (Decoder) which need a certain code of pulses to work, you get even more complex one which change the code as well, but you needn't worry about that for your project.Make sure you don't just build a circuit, make sure you understand how it works. If I was examining you, I'd want a detailed description! :-)Good luck and let us know how you get on
Cheers // David