Several demonstrators, including Archbishop Anil J T Couto and many other bishops and nuns, were detained and taken to Parliament Street police station but were released after some time.
Police also used water canon to control the demonstrators.
The protesters were demanding the governemnt to strike down the Presidential (SC) order of 1950 which denies equal rights to Christians and Muslims of Dalit origin, according to a statement released by Delhi Catholic Archdiocese.
During the protest, jointly organised by Catholic Bishops Conference of India (CBCI), National Council of Churches in India (NCCI) and National Council of Dalit Christians (NCDC), the agitators demanded deletion of the paragraph 3 of the Constitution (SC) Order to "make the Scheduled Caste net fully religion-neutral like that of the Scheduled Tribe".