This is the 682nd most frequent Marathi word.
बसत
"बसत" in English means "sitting" or "settling."
Here, 'बसतो' (the root form being 'बसत') is used to denote the action of sitting down on something.
मी खुर्चीवर बसतो.
I sit on the chair.
Here, 'बसले' (from 'बसत') is used to refer to the audience being seated in a composed manner.
त्या नाटकात सर्व प्रेक्षक शांतपणे बसले.
In that play, all the audience sat quietly.
In this example, the word 'बसली' (derived from 'बसत') conveys the meaning of 'settling down' temporarily or gathering.