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 Tajik Language
According to Wikipedia.org, Tajik is a form of Persian that is spoken in Tajikistan, Uzbekistan, Kyrgyzstan, Kyrgyzstan, China, and Kazakhstan. The total number of Tajik speakers is 8 million that including 6.3 million in Tajikistan itself. You will be surprised to know that the Persian language in Tajikistan was renamed Tajik by Stalin in 1932. This was done to differentiate Persian speakers in Iran and Central Asia. Before 1928 Tajik was written in Perso-Arabic script. However, from 1928 to 1940 it was modified with the Cyrillic alphabet. There were a lot of people who wanted to switch it to the Latin alphabet. The Tajik dialects are separated into northern, central, southern, and Southeastern dialects. Most of the politicians and other officials usually make their speeches in the Kulob dialect. There is a total of six vowels in this language.