Please, be advised that if you intend to stay in the Czech Republic and you are non EU citizen, you are required to obtain a visa. Czech visa is issued by the Czech Embassy in your home country where you can also get more information.
Czech Embassies abroad:
http://www.mzv.cz/jnp/en/diplomatic_missions/czech_missions_abroad/index.html
Conditions for obtaining visas to the Czech Republic:
