Updated

An activist who crusaded against superstition and black magic has been gunned down in daylight in a central Indian city.

Hundreds of chanting students and activists are marching through the streets of Pune to protest Tuesday's killing of Narendra Dabholkar on a bridge in Pune.

Police are searching for the two motorcycle-riding attackers, and released a sketch of one suspect Wednesday.

Dabholkar's organization, the Maharashtra Blind Faith Eradication Committee, says the 67-year-old activist had been receiving threats for his decades of work against religious charlatans and practices involving animal or, more rarely, human sacrifice.

The organization urged the Maharashtra state government to pass long-stalled legislation to ban such practices.