Rins finished second behind the Italian, while championship leader Mir, who has yet to win a race this season, started 12th on the grid and finished third, extending his lead to 14 points over Morbidelli's team mate Fabio Quartararo who finished eighth.
Polesitter Takaaki Nakagami, who became the first Japanese rider in 16 years to clinch a premier-class pole, endured heartbreak when he crashed on the opening lap while the LCR Honda rider was in the lead. (Reporting by Rohith Nair in Bengaluru; editing by Clare Fallon)
MotoGP star Jason Dupasquier dies after crash
Quartararo sets lap record to take pole at Italian GP
IWD special – 'Any sport should be equal' – FHO Racing boss on proving women belong in motorsport