The incident took place on the night of May 12 when Chincholikar performed in Bhoiwada, central Mumbai, as a part of Buddha Jayanti celebrations.
The attacker was allegedly upset with certain comments of Chincholikar, who preaches against social evils such as superstitions and addiction through the age-old 'kirtan' format, accompanied by tambourine.
As the performance ended, Kunal Jadhav, a Navi Mumbai resident, suddently rushed forward and tried to stab Chincholikar in the stomach with a knife, police said.
While Chincholikar suffered a minor injury and was taken to a nearby hospital, the people around him caught hold of Jadhav who tried to run away.
Jadhav was upset over some of the statements made by the social activist, a senior police officer said.
The accused subsequently got bail. Police are conducting further probe.
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