first of all i wanna correct u.........the language is Punjabi..............and yes it is spoken in Punjab,India and other states where punjabis are living.........many Punjabi songs have been a part...
The population of Punjab on December 15th 2011 is approximately 27,839,749. (Extrapolated from a population of 24,289,296 in 2000 and a population of 27,704,236 on June 24th 2011.)