The police prevented several protesters, mostly students, from reaching the RSS office in central Delhi, where they wanted to stage a demonstration.
The event organisers had set up a Facebook page through which the event was organised today.
As the protesters, mostly students of University of Delhi and the Jawaharlal Nehru University, tried to march from the Jhandewalan metro station to the RSS office, they were stopped by police who had set up barricades on the way.
On why they had chosen the RSS office for the protest, the protesters alleged that right-wing groups have been "denying them public space" to express their affection.
The first "Kiss of Love" event was held in Kochi on November 2 after activists from all over Kerala decided to protest against the state government's perceived moral policing.
Similar events have been organised at Kolkata, Hyderabad and Mumbai.
The campaign started after a coffee shop in north Kerala's Kozhikode city was vandalised by a group of people who were reportedly protesting against "public display of affection" by some couples there.