His assassin was Nathuram Godse , an advocate of Hindu nationalism , a member of the political party the Hindu Mahasabha , and a past member of the Hindu nationalist paramilitary volunteer organization Rashtriya Swayamsevak Sangh ( RSS ) .

India 's National Investigation Agency ( NIA ) charged Judgment_communication eight people in the terrorist attack Attack , including Swami Aseemanand , a Hindu cleric formerly affiliated Connect with the Rashtriya Swayamsevak Sangh .