I can see 2 types of characters on this page...
https://en.wikipedia.org/wiki/Devanagari_(Unicode_block)
Group A:
ऀ ँ ं ः ऺ ऻ ़ ा ि ी ु ू ृ ॄ ॅ ॆ े ै ॉ ॊ ो ौ ् ॎ ॏ ॑ ॒ ॕ ॖ ॗ ॢ ॣ
Group B:
ऽ ऄ अ आ इ ई उ ऊ ऋ ऌ ऍ ऎ ए ऐ ऑ ऒ ओ औ क ख ग घ ङ च छ ज झ ञ ट ठ ड ढ ण त थ द ध न ऩ प फ ब भ म य र ऱ ल ळ ऴ व श ष स ह ॐ
I will like to know what the Group A is called. I am calling it Group A because all of these characters are having a circle in it. It is called "swar" characters?