राष्ट्रभाषा तो नहीं है हिंदी, लेकिन देश की भाषा बन सकती है अगर …

[kenp]

https://www.youtube.com/watch?v=e4md5ntSgsc

Although the United States does not have an official language, the most commonly used language is English (specifically, American English), which is the de facto national language, and the only one spoken at home by approximately 78% of the U.S. population https://en.wikipedia.org/wiki/Languages_of_the_United_States
if these countries smaller than Indian states in population can have their own languages then why can't Indian states? 

https://www.storypick.com/indian-states-population/