If you have followed the correct procedure to learn these letters you will be able to read and write two consonants and two vowels by now.
க் + அ = க ik + a = ka
க் + ஆ = கா ik + aa = kaa
Now let us learn two more consonants for today.
The letter த tha has two sounds, tha and dha. It depends on the context. By practising these words you will begin to get an idea about the two different sounds.
Circle these letters in a newspaper or magazine. We will learn consonants and vowels alternatively.