Among the dead was the newlywed 20-year-old bride Nivedha and her relatives Sneha, 22, Kanniga, 20, and Santosh 14.
Their bodies were later recovered and post-mortem examinations were done.
Indian couple Vishnu Viswanath, 29, and Meenakshi Moorthy, 30, fell to their deaths while taking a selfie in the Yosemite National Park previous year.
The US National Library of Medicine recorded 259 deaths in the country between 2011 and 2017, with Russian Federation and Pakistan in second and third place.
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The same year a man died in Odisha after an elephant wrapped its trunk around him and crushed him to death as he tried to take a selfie with the animal.
The groom, who was taking the picture, managed to steady himself and rescue his sister from the water, which had risen during the time they were there, but the other four disappeared underwater.
Bansal said he was concerned about how numerous selfie-related deaths involved young people.
Some cities like Mumbai have started putting "no-selfie zone" signage up, as a warning to the country's 300 million smartphone users. The high number of selfie-related deaths in India was attributed in part to the country having a high share of the world's population of 30-year-olds or younger.
A base jumper takes a selfie over a city in this undated photograph.
Transportation was high on the list of causes of selfie deaths in the study.