The Border Security Force (BSF) jawans will now march to the beats of Oscar winner A R Rahman. The music composer, who enchanted the world with his `Jai Ho' number, has composed the theme song for the paramilitary force. The five minute song â€” `Hum Seema Suraksha Bal... Veeron ka hai ye dal (We are the Border Security Force... it is the force of the brave)' (which is originally composed by Rahman as Aazadi for the 2005 bollywood movie Bose forgotten hero), praises the strength and valour of the force which is responsible for guarding the Indo-Pakistan and Indo-Bangladesh borders. "The credit for the song goes to Meghalaya governor R S Moosahary, who is a former director-general of the force. He helped us get in touch with Rahman, who composed the song without charging any money for it," BSF chief M L Kumawat told reporters on the occasion of the force's investiture ceremony here on Thursday. After being formally released on the occasion, the song, which also captures the emotional tribulations of a jawan guarding the border while leaving his family behind, comes with a video â€” titled `Borderman' â€” showing BSF men in action along the border, undergoing training and the famous `change of guard' ceremony at Wagah border. Kumawat said: "The song and the video capture the true spirit of the force. Rahman has also promised to come and spend time with our men to boost their morale."