Maheswary had a modest jump of 16.16m to finish second behind Kazakhstan's Roman Valiyev (16.69m).
Local lad Rashid Ahmed Al Mannai won the bronze with an effort of 15.97m.
In 60m hurdles, India's Gayathry Govindharaj qualified for tomorrow's final with her personal best to 8.38 secs.
Earlier yesterday, Mayookha Johny had won her second medal -- a silver in women's triple jump -- to add to her gold in long jump on the opening day.
The Jury of Appeals upheld the protest from Iran citing lane infringement by the Indian athlete in 800m -- the fifth and last event of the Pentathlon.
Dutee, meanwhile, had won a bronze in women's 60m dash with a time of 7.37 secs in the final. She had set a national record while winning her heats in 7.28 secs.
Sugandha Kumari had also won a bronze in women's 1500m with a time of 4:29.06.
