Singer-composer Shankar Mahadevan has created the signature tune for the Directorate of Revenue Intelligence (DRI). He tweeted about it today, saying:

The DRI is India's chief anti-smuggling intelligence, investigations and operations agency. The Directorate is run by officers from the Central Board of Excise and Customs who are posted in its various Zonal Units as well as at Indian embassies abroad as part of the Customs Overseas Intelligence Network. 

Shankar Mahadevan is known for composing music for films like Zindagi Na Milegi Dobara, Don, Kabhi Alvida Naa Kehna, My Name Is Khan, and 2 States.