You might do better promoting existing coins to Indian people, crypto is cool because it crosses country borders and is truly international, but it is definitely based around English language, which is slowing adoption is some places, maybe India falls into that category.
I think one problem is that India has dozens of languages.
Hindi is the most widely spoken and is the only one that shares official status alongside English but only about 25% of the population actually speaks it as their mother tongue:
India has 23 constitutionally recognized official languages. Hindi and English are the official languages used by the Central Government. State governments use respective official languages.
Hindi is the most widely spoken language in northern parts of India. The Indian census takes the widest possible definition of "Hindi" as a broad variety of "Hindi languages". According to 2001 Census even though 45% of Indian population know Hindi, only 25% of them have declared Hindi as their native language or mother tongue.[2] Indian English is recorded as the native language of 226,449 Indians in the 2001 census.[3]
Source:
https://en.wikipedia.org/wiki/List_of_languages_by_number_of_native_speakers_in_India