About Nepali Language
According to Wikipedia.org, Nepali is an Indo-Aryan language. It is the sub-branch of Eastern Pahari. Nepali is the official language at the federal level in Nepal. It is one of the 22 scheduled languages of India. Nepali is also called Nepalese, Gorkhali, or Parbatiya. Nepali is spoken mainly in Nepal and is spoken by a quarter of the population in Bhutan. Nepali has official status in the state of Sikkim and is also spoken in the Kalimpong district of West Bengal. Nepali has a significant number of speakers in Arunachal Pradesh, Assam, Himachal Pradesh, Manipur, Mizoram, and Uttarakhand. The origin of the modern Nepali language is linked to the Sinja Valley of Jumla. It is a historical language and was spoken by the Khas people of the Karnali region. The language gets its name from Khas Speech (Khas Kurā). Nepali has an archaic dialect and is spoken in Karnali.
About Thai Language
According to Wikipedia.org, Thai, also known as Central Thai is a Tai language of the Kra–Dai language family. It is spoken by the Central Thai people. A vast majority of Thai Chinese also speak Thai. It is the official language of Thailand. Thai is one of the most spoken languages. There are over 60 languages of Thailand but Thai is one of the most popular languages in Thailand. It is spoken by both native and overall speakers. Half of the Thai vocabulary is similar to Pali, Sanskrit, Mon, and Old Khmer. It is the analytic language and is very much similar to the Chinese and Vietnamese languages. Thai is a dominant language and is spoken by the majority of the society in Thailand. Thai language gained widespread popularity in Thailand and other parts of the world. The language is also adopted as the second language in the late 18th century. Ethnic minorities speak Thai other than their native language or dialect.