i am a final year student in b.tech computer science n now i have a traning in last semester so pls advise me a good programming language,which is having good marcket value

See Mridul, There are just two main categories at present: one is JAVA and other is .NET. It depends on your training that which option you have opt for. Whatever you have done you should not change that or switch to the other. If you have done JAVA then do the Advance part of it and carry on with