Medhavi Patel (26), who was in the third year of a post-graduate course in paediatrics, allegedly injected herself with a drug late last night, said an official from Ellisbridge police station.
Medhavi left a suicide note in which she said she was taking this step due to her ill-health and the pressure of studies, inspector A S Patel said.
She was suffering from tuberculosis for a long time, he said.
"We are yet to identify the drug she used. She was found dead in her room in the girls' hostel in the morning," inspector Patel said, adding that autopsy report was awaited.