Hindi is a beautiful, ancient, elegant, and expressive language and one of the easiest and most logical languages to read, write, and pronounce. Corporations looking to expand their operations and sales to the South Asian region will recruit people who are familiar with Hindi and the Indian culture to market their products to a Hindi-speaking population.
Hindi is spoken by some 366 million people worldwide. Hindi is considered to be the fourth most spoken language in the world, behind Mandarin Chinese, English, and Spanish. Travelling through India and learning its culture is more meaningful when you can communicate in Hindi.
Those who want to work in the government sector as an American Consulate or as a Foreign Service Officer (FSO) in India learn Hindi to increase their rank and status in their organization Hindi can be used as a 'breakout' language because Urdu shares the same vocabulary and grammar as that of Hindi, the Devanagri script of Hindi is employed to write several other languages in South Asia, including Nepali, Marathi, and Sanskrit. It is also closely related to Punjabi (in India), Bengali, Gujarati, and Oriya.
Urdu's language script can also be used to write Kashmiri, Punjabi (in Pakistan), occasionally Persian, and Pashto. So learning these scripts gives you access to many more languages than simply Hindi and Urdu.