For learning Korean language it is necessary to know alphabets in Korean. You have to know alphabets in Korean to learn writing in Korean language. Korean alphabets are the building blocks of Korean language. There are 40 characters in Korean alphabets. Korean alphabets are made up of Korean vowels and Korean consonants. The Korean alphabets contain 21 vowels and 19 consonants. Korean vs German gives a comparison between Korean and German alphabets.
Korean script is also known as Korean writing system or Korean orthography. The set of visible signs used to represent units of Korean language in a systematic way is called Korean Script. The Korean language uses Hangul i.e. Korean alphabets are derived from Hangul script. The script decides the writing direction of the any language, hence the writing direction of Korean is Left-To-Right Horizontal and Top-To-Bottom. Learn Korean Greetings where you will find some interesting phrases.
Is Korean hard to learn? The answer to this question is that it depends on one's native language. One should start learning Korean language with Korean alphabets and Korean 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 Korean is one of the language of India.