They were expected to arrive at a family member's home in San Jose but never made it to the house.
The Thottapillys were traveling from Portland, Oregon, to their home in the Los Angeles suburb of Valencia when they were reported missing April 8 after failing to show up for a visit with relatives in San Jose.
More than a week after an Indian family went missing in U.S., their SUV that had fallen into a rain-swollen Northern California river has been found with two bodies inside, authorities said on Monday, as per a report in the New York Post.
Local news agencies are reporting that at least 70 searchers were involved in the rescue effort on the Eel River in Leggett, California.
Inside were the bodies of Sandeep Thottapilly, 41, and 9-year-old Saachi Thottapilly.
Searchers on Monday found the body of a 12-year-old boy in a Northern California river - the last of four family members who perished when their sport utility vehicle plunged into the rain-swollen torrent.
A team on a boat smelled gasoline about half a mile downstream from where the crash was reported and found the SUV.
"Visibility was extremely poor and divers noted the vehicle was encased in a large amount of sediment from the river current", Capt. Gregory L. Van Patten, field services commander of the sheriff's office, said in the statement.
A vehicle matching the description of the one belonging to the Thottapilly family was seen going into the river on April 6, when a massive storm swamped areas of Northern California.
Sandeep worked as a vice-president with the Union Bank and lived in Los Angeles with his family.
The Klamath River and a string of state and federal redwood parks lie along USA 101, north of where motorists saw the vehicle fall into the Eel River.
The body has been identified as that of 12-year-old Siddhant Thottapilly.
Sarah and Jennifer Hart and their six adopted children were believed to be in the SUV at the time.
Authorities have said data from the vehicle's software suggested the crash was deliberate, though the California Highway Patrol has not concluded why the vehicle went off an ocean overlook on a rugged part of coastline. The crash happened just days after authorities in Washington state opened an investigation following allegations the children were being neglected.