Learn Sanskrit, the mother of all languages which is believed to be the most systematic and technical language of all.
It is also the only language that is used in the holy ceremonies of the Hindus. Sanskrit mantras, when recited in combination with the sound vibrations, have a specific effect on the mind and the psyche of the individual.
A highly versatile language, there are numerous synonyms for each word with specific meaning. It is also the most accurate language in pronunciation. It makes use of 49 types of sounds that make pronunciations of different kinds of words very distinct.
And what better a place than Varanasi to learn the language of the Gods. Patanjali and Shankaracharya the reputed Sanskrit scholars are said to have lived in Varanasi.
Along with the learning you will have ample opportunities to witness the ancient Indian culture of chanting hymns in Sanskrit while performing every ritual.