Chief Minister Mamata Banerjee gave the award to them at the Sangeet Samman award function here.
Lahiri thanked the government for the award while Sanu was not present in person to collect the honour.
Bollywood musician Shantanu Moitra was felicitated with the Sangeet Mahasamman award while vocalists Nachiketa and Ajoy Chakrobarty were given special sangeet samman.
During the award function, the CM said the Sangeet Mela will be held for the next 10 days at different venues where 5,000 artists will participate.
She also announced that a folk culture festival would be organised at Lal Dighi from December 23.