A basis for the organisation and classification of ragas depending on the notes used
Thaat:
Purvi
Preferred time or season for playing
Time:
Late night or any time during spring
The most prominent note of a raga
Vadi
/
The second most prominent note of a raga
Samvadi:
, 
Categorization based on number of notes used in aroh and avaroh
Jati:
Containing 5 notes
Audav
-
Containing 7 notes
Sampurna
Do not follow strict ascending or descending order of notes
Vakra
Emotions evoked by the raga
Mood:
Karun (Sad, Compassionate), Shringar (Romantic)
Basant is one of the ragas of Basant ritu/spring season, which can be presented at any time during the spring season and at late night in other seasons. It is an
With focus on notes higher than M or P (depending on the point of view) of the middle octave
uttarang pradhan
 raga and the higher is used most often. In
Ascending movement of notes
aroh
 is mostly omitted; however, it may be used in
Do not follow strict ascending or descending order of notes
vakra
 form. Though it uses both forms of ,
A sharp note
tivra
 is used most of the time and
A natural note (corresponds to notes in Western major scale)
shuddha
 is used only to show the Lalit
Style of presenting based on another raga
ang
. Usually in aroh is omitted in middle octave, but utilized in higher octave. Paraj raga is very close to this raga, having the same notes, but gets differentiated by more prominence of and the style of shuddha usage.