If you want to familiarize yourself with one of the most spoken languages throughout India then you should study Gujarati. Gujarati is a very old language that is based off of the Indo-Aryan languages. It is one of the official languages of India and it spoken by over 46 million people.
Because of the large population of individuals that speak this language in India and throughout other areas of the world, Gujarati is considered to be the 26th most spoken language throughout the world. Gujarati has a rich history that includes ties to the ancient language Sanskrit. If you are interested in learning Gujarati it is very important that that you learn more about the development of the language, the various dialects and form an understanding of the writing system.