Singh ( Punjabi : ਭਗਤ ਸਿੰਘ بھگت سنگھ, IPA: [pə̀ɡət̪ sɪ́ŋɡ] ) ( September 28 , 1907 – March 23, 1931 ) was an Indian freedom fighter , considered to be one of the most influential revolutionaries of the Indian independence movement . He is often referred to as Shaheed Bhagat Singh