He worked closely with the then fellow child actor, Naeem Sayyed (better known as Junior Mehmood), with whom he first acted in the Shammi Kapoor-starrer Brahmachari at the age of eight.

[2] He switched to playing lead roles for a brief time with Rajshri Productions' Geet Gaata Chal, for which he was cast opposite Sarika.

In 2011 he directed and starred in Jaana Pehchana, which is a sequel to Sachin's earlier blockbuster film Ankhiyon Ke Jharokhon Se.

The role required him to speak in only Urdu, with which he was comfortable thanks to his training in the language by Meena Kumari in 1966 while together working on the film Majhli Didi.

[9] Sachin, along with Laxmikant Berde, Ashok Saraf and Mahesh Kothare formed a successful quartet, starring in several hit movies in Marathi cinema in the 1980s and 1990s.

In the meantime, he also anchored Hindi music shows like Chalti Ka Naam Antakshari on Star Plus and various other events and Marathi film award ceremonies.

[15] In late 2007, he started a new program on Zee Marathi, known as Eka Peksha Ek, which is based on dance, finding hidden talent in all the areas of the state of Maharashtra.

Further, he tasted major success in 1988's Ashi Hi Banwa Banwi, which starred himself and the two reigning superstars of Marathi cinema, Ashok Saraf and Laxmikant Berde.

He then changed track to the experimental cinema with the next two films but returned to comedy with Aamchya Sarkhe Aamhich (1990) which proved to be yet another super hit.

[2][17] For noted director Govind Nihalani's directorial debut in Marathi with the 2017 film Ti Ani Titar, Sachin wrote a ghazal titled "Badal jo ghir ke aaye" under the pseudonym of Shafaq.