Raga and Its Classification: Thaat, Ragang, Jati
What this domain tests
Questions ask you to place a raga in Bhatkhande's ten-thaat scheme, identify its jati from the number of notes in aroha and avaroha, and recognize a ragang phrase. The exam rewards structural reasoning, not memorized labels alone.
Thaat
Bhatkhande's ten thaat are Bilaval, Khamaj, Kafi, Asavari, Bhairavi, Bhairav, Kalyan, Marwa, Poorvi, and Todi. A thaat is a parent scale of seven notes used for classification; it is not a performing raga. It has no aroha, avaroha, vadi, samvadi, or prescribed time. A raga may omit or alter notes in performance and still belong to a thaat.
Jati
Jati counts swaras in each direction: audav = 5, shadava = 6, sampurna = 7. A raga's jati is written as aroha–avaroha, e.g. audav–sampurna. Do not assume a raga is sampurna because its thaat is.
Ragang
Ragang is a characteristic phrase-family or “ang” such as Sarang ang, Kanada ang, or Malhar ang. It explains resemblance between ragas and helps identify mixed ragas. Ragang is not a thaat and not a synonym for raga.
Worked example
Bhoopali uses Sa Re Ga Pa Dha in ascent and descent, with shuddha Ga and Dha. It is audav–audav and is classified under Kalyan thaat in Bhatkhande's system, even though it omits Ma and Ni. The reasoning: thaat fixes the parent scale, while jati counts the raga's actual notes. Calling Bhoopali “Kalyan thaat, audav–audav” is precise; calling it “Kalyan raga” is not.
Traps
Do not give a thaat a time or vadi. Do not count thaat notes as raga notes. Do not confuse ragang with a scale or use “jati” to mean caste-like category; in this paper it means note-count classification.