The group was on their way to a wedding in Uttar Pradesh when their car plunged into the Ramganga river from the unfinished bridge early Sunday.
The driver followed Google Maps into taking the route, the Hindustan Times newspaper said Tuesday, quoting police officials.
Police questioned an unnamed official from the navigation app, as well as others from the government public works department, the Press Trust of India news agency also reported.
“Our deepest sympathies go out to the families. We’re working closely with the authorities and providing our support to investigate the issue,” a Google spokesperson told AFP in an emailed statement.
A local police officer said that a portion of the bridge had been damaged during a flood last year.
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The accident comes a year after two doctors were killed in Kerala when their car plunged into the state’s Periyar river after they followed the app.