Clashes between rival student groups in Jaipur and police action in Hyderabad where several people were detained marked the protests in other cities.
In the national capital, the lawyers, mostly from Patiala House and several other district courts, marched around the India Gate circle, shouting slogans and waving the tricolour, amid heavy police security. They were demanding action against those "indulging" in "anti-India" activities.
Chauhan's colleagues told the media that the lawyers did not indulge in violence against anyone, including journalists.
Three lawyers, including Chauhan, have been summoned by Delhi Police in connection with Monday's attack but they are yet to appear before it.
Members of ABVP, a RSS student wing, and Congress' student wing NSUI clashed during their protests over the JNU row outside Rajasthan University campus in Jaipur.