According to me the best simplest and cheapest way to design the remote control celling fan will required you to have few things:-
(i)RF transmitter and receiver module
(ii)HT-12D and HT-12 E I.C
(iii)Relay
You can have a remote which will be having a RF transmitter, you can pick the possible available RF module near by you, i preffer to use 434Mhz RF transmitter and at receiving side you need to have a RF receiver of same frequency and a relay connected to output data bits of decoder HT-12 D. And relay output is connected to ceiling fan.just try it it will work 