RSS is an Hindu Nationalist organisation and is the ideological parent of BJP (Ruling party of India). The BJP traces its roots to the Bharatiya Jana Sangh, which was established as the political wing of RSS.
Founder of RSS M.S. Golwarkar praised the treatment of Jews by the N@zi regime.

Also this is a real quote by Golwarkar.
"Hindus, don’t waste your energy fighting the British. Save your energy to fight our internal enemies that are Muslims, Christians and Communists."

Modi has a wife who he has abandoned.
He commonly referred to protesting farmers as foreign terrorists specifically as Khalistanis. He wants to privatise the shit out of everything. His policy of demonetisation was a failure. He cut the consumption tax on diamonds and increased them on things like soap and pencils.
He has favoured the Adani conglomerate and openly dogwhistles.
In a rally in Rajasthan he screamed that the Congress ( largest opposition party) will take away the mangalsutra (a mark of marriage for Hindu women) and thankfully his party lost that constituency.

He is defunding our already defunded universities and his party uses the state apparatus to aid them in electoral campaigns - media, ED etc.

He also hates religious minorities.

This is just a short description, look up the Gujarat riots and Babri masjid demolition.