Why Prithvi Shaw grabbed Musheer Khan's collar and almost hit him with the bat

Prithvi Shaw's century for Maharashtra against his former team Mumbai in a Ranji Trophy warm-up match ended in a heated exchange with bowler Musheer Khan. Following a dismissal, alleged sledging led to a confrontation, though Maharashtra's captain downplayed the incident as a practice match occurrence.

source https://timesofindia.indiatimes.com/sports/cricket/news/why-prithvi-shaw-grabbed-musheer-khans-collar-and-almost-hit-him-with-the-bat/articleshow/124368414.cms