[3] In 1999, he co-founded the band Dohar with the intent to revive the folk music tradition of Northern and Eastern Bengal.

He was associated with the popular Zee Bangla Sa Re Ga Ma Pa, a renowned Bengali music reality show.

Dohar has already released nine albums of folk songs directed by Kalika from Concord records, Sony music & Sa re ga ma (HMV).

In the year 2008, he sang for the Bengali film Moner Manush (golden peacock award winner) which is an India-Bangladesh joint project directed by Goutam Ghose.

Bengali film Jaatishwar was a national award (Rajat Kamal) winner directed by Srijit Mukherjee, where Bhattacharya sang in the year 2014.

This is reiterated from his most recent occupation as one of the founder-organizers of "Sahaj Parav"[9]- an annual root music festival, one of its kind in India, looking to celebrate the diversity and variety of folk forms of arts and crafts in greater south Asia, with a deliberate focus on Bengal.

Through this, Kalika's commitment to the proliferation of the traditional arts is explicit and once again confirms his pledge for the development and rediscovery of the lost tunes of the soil.

The TV channel Zee Bangla established that Bhattacharya's genius should not only be limited to the Bengalis but should be expanded also to the people cutting across the language barrier just like Punjabi folk songs.

Bhattacharya received the "Sangeet Samman award” from the government of West Bengal for his unique creation and musical excellence in 2013.