For learning Hmong language it is necessary to know alphabets in Hmong. You have to know alphabets in Hmong to learn writing in Hmong language. Hmong alphabets are the building blocks of Hmong language. There are 74 characters in Hmong alphabets. Hmong alphabets are made up of Hmong vowels and Hmong consonants. The Hmong alphabets contain 14 vowels and 60 consonants. Hmong vs German gives a comparison between Hmong and German alphabets.
Hmong script is also known as Hmong writing system or Hmong orthography. The set of visible signs used to represent units of Hmong language in a systematic way is called Hmong Script. The Hmong language uses Latin i.e. Hmong alphabets are derived from Latin script. The script decides the writing direction of the any language, hence the writing direction of Hmong is Left-To-Right, Horizontal. Learn Hmong Greetings where you will find some interesting phrases.
Is Hmong hard to learn? The answer to this question is that it depends on one's native language. One should start learning Hmong language with Hmong alphabets and Hmong phonology.
Time taken to learn any language that is mentioned here is the approximate time required to learn specific language for the person who is proficient in English. You can also go through all Indian Languages and find if Hmong is one of the language of India.