Earlier it were Britishers who were funding Sangh parivar to divide Indians during the war of Independence.
After Britishers it were Nehru and Congress who were funding Sangh Parivar.
After BJP came into power, Congress stop funding opposition. So, the option left for Sangh or RSS is either Foriegn forces or terrorizing Hindus in the name of Muslims and militants to get the funding for RSS, and votes for BJP.