Next one is Saan . Note the Aa vowel has a shorter line than in Hindi. This completes the second line. This completes the third line. We will come back to more vowel marks later.
Lets look at the first line in the Punjabi Alphabet.
As in Hindi N has many forms. These letters are called gutturals because they are sounded from the back of the throat and are pronounced as in the word below each letter. These letters are in the first line of the figure below. Using the four words learnt at the beginning S , N . There is one more letter introduced somewhere to make the word Ghandi - try and spot it.