Three BJP MPs, including Bansuri Swaraj, were detained by Delhi Police during a protest march to Rahul Gandhi's residence.
Union MoS Raksha Khadse, BJP MPs Bansuri Swaraj and Kamaljeet Sehrawat, and several other party leaders were detained during the protest.
The protest comes a day after the Constitution (131st Amendment) Bill failed to pass in Lok Sabha, with 298 members voting in favour and 230 against it.
Congress has clarified that it does not oppose the women's reservation but the delimitation process linked to the bill, which seeks to increase the seats in the Lok Sabha to 815, disproportionately lowering the share of Southern states in the Parliament.
