Listen to Thankachi En Thankachi online. Thankachi En Thankachi is a Tamil language song and is sung by S.A. Rajkumar, Madhu Balakrishnan and Sadhana Sargam. Thankachi En Thankachi, from the album Rajakaali Amman, was released in the year 2000. The duration of the song is 3:47. Download Tamil songs online from JioSaavn.