A simple keyword search on Facebook showed that the video was shared last year as well with an exact same claim. While sharing the video last year, a Facebook user Fari Juddin had written, "Assam police being chased by the Muslims who were not enrolled in the NRC #CP".
We searched on Youtube with a keyword "Protesters Chasing Away Policemen" and found the same video uploaded by India Today.
The title indicates that the video is from Aurangabad, Maharashtra.
According to a report by Times of India, the Aurangabad national highway was blocked when a young man had committed suicide by jumping into the Godavari river. Protestors alleged that police provoked the youth to take the extreme step.
The Maratha community was protesting for reservation in government jobs and education across Maharashtra. The angry protesters chased away the police who had come to control the crowd.
The video showing protesters chasing away policemen is from Aurangabad, Maharashtra which was captured during the protests Over Maratha Reservation. The video has nothing to do with the implementation of the National Register for Citizens (NRC) in Assam.