The actress, who died on Saturday at the age of 54, was attending a family wedding in Dubai, United Arab Emirates.
"Following the completion of post-mortem analysis, #DubaiPolice today stated that the death of Indian actress #Sridevi occurred due to drowning in her hotel apartment's bathtub following loss of consciousness," Dubai police tweeted.
Police added that the case had been transferred to Dubai's public prosecution office.
Bollywood greats and Indian political elites flooded social media with tributes to the actress whose work spanned five decades and included some of the country's most beloved films.
Indian Prime Minister Narendra Modi was among the many who expressed shock at Sridevi's death, with a tweet early Sunday extending his condolences to her family.
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