Твой сосед Адитья и все индусы, работающие в американском IT, знают английский по определению. Но это не значит, что большинство индусов знают английский.
Only about three percent of India's population speak English
Only about 2 per cent speak English

In the 1981 census, 202,400 persons (0.3 percent of the population) gave English as their first language. Fewer than 1 percent gave English as their second language while 14 percent were reported as bilingual in two of India's many languages.

In 1997 an India Today survey suggested that about a third of the population had the ability to carry on a conversation in English. This was an amazing increase over the estimates of the 1980s, when only about 4%-5% of the population were thought to use the language. And given the steady increase in English learning since 1997 in schools and among the upwardly mobile, we must today be talking about at least 350 million.
Т.е. оценки 20-летней давности от 1 до 3 процентов. Современные грубые прикидки (с явной политической ангажированностью) дают от 30 до 33%, но никак не большинство