Suraag – The Clue is an Indian television detective-crime drama series that aired on DD National from 14 June 1999 to 30 September 2002. The series, starring Sudesh Berry as CID Inspector Bharat Chatterjee in the main lead, was directed by Gautam Adhikari and produced by Shri Adhikari Brothers Limited. It used to air every Monday at 10 P.M.In the drama, Inspector Bharat Chatterjee and his assistant Inspector Nitin Srivastav formed a formidable partnership in solving crimes, mostly murder mysteries. This series, unlike previous detective-crime dramas in India, involved tackling of one case every episode and seldom were the story or case of one episode continued to the next one. Umesh AN was the producer.

After the drama ended, a new series called CID Officer (with same crew and cast) was aired on the same time. It was described by the media as "unofficial extension" of the Suraag.