In the last elections, 37% Of India supported him, the rest of the voters split their votes between the different political parties in opposition.

Hindu supremacist leaders allied with Modi's political party have created 'the enemy' in Muslims by using theem as a bogeyman with their constant lies that inspire fear , anger, and hate. They use isolated incidents to create tropes that paint the entire Muslim community as villains.

Eg: India is so deeply patriarchial and casteist that 90%+ of Indian marriages are arranged by parents and most of the time the idea of a girl/woman choosing her own partner and to marry for love is so oppose that it leads to 'honour' killings. In such a country, isolated incidents of Muslim men eloping with their Hindu girlfriends are used to create the 'love jihad' bogey which accuses all Muslim men of seducing or wanting to seduce Hindu women. This trope, as you can guess, inspires fear, hate and anger. Similar tropes are "land jihad", "education jihad", etc. This has been going on for years and has been increasingly virulent & violent since Modi took office in 2014. Violence has increased against Muslims because the Modi govt turns a blind eye towards violence against Muslims and allows it to continue.

They're aided in this by India's maintream media who're all Modi's yes-men. Movies are made that depict India's Muslims as evil and terrorists and they're championed by Modi himself.

Hindu supremacist leaders and Hindu religious leaders have also successfully conned the gullible into believing that Hindus, 85%of india's population and who occupy almost all positions of power, are bothe simultaneously weak and powerful. Mythologies and made up info are used to convince the gullible that Hindu civilization is at once the most advanced and at the same time victims to Mughal rulers.
So Modi's followers who're called 'the blind faithful' aka andhbhakts are both gullible when it comes to their religion and hate muslims,