Indian classical ragas, by the number of notes, can be divided into _____ main categories or Jatis.

The Correct Answer is: (c) three

Explanation:
In Indian classical music, Jatis are classifications of ragas based on the number of swaras (notes) used in the ascending (Arohana)

and descending (Avarohana) scales. There are three main types (Jatis) of ragas:

Information Booster:
• The term 'jati' is derived from ancient Sanskrit texts and mentioned in Natyashastra and Sangeet Ratnakar.​
• Sampurna Raga – Uses all 7 notes (e.g., Raga Bhairavi).
• Audava Raga – Uses 5 notes (e.g., Raga Mohanam in Carnatic).
• Shadava Raga – Uses 6 notes (e.g., Raga Marwa).
• A total of 9 jati combinations are possible using these 3 categories in ascending and descending scales.