technologies in demand!!!

which are the technologies in demand that would make me employable in the coming days?

i am going to complete my b.tech in may, 2013(from a **** private college). i just want to know from the respectable members of think digit forum that which are programming languages in demand whose project i should put on my profile on github.com (and my ranking on topcoder) to get a "not bad job" in india.(not the maintenance job)

thanks in advance!!!