Speaking to the media in Nagpur, Bhagwat said, "It is a cowardly act, we strongly condemn it. We expect action in response to this incident."
"We have tolerated a lot and are still doing so, as seen from today's incident," he said. "They will get a reply (to the attack)," Bhagwat said.
The Hindutva organisation's general secretary Suresh Bhaiyyaji Joshi strongly condemned the attack and said the RSS, an ideological mentor of the ruling BJP, is with the government and the security forces in this hour of crisis.
In a series of tweets, he also paid homage to the deceased CRPF personnel and expressed condolences to their family members.
"The attack is clearly a sign of desperation and frustration due to the clampdown on terrorism. The government should take stringent action against culprits at the earliest," Joshi said.
Vishwa Hindu Parishad, an RSS affiliate, blamed Pakistan, with its joint general secretary Surendra Jain seeking action against it.