Two days before the recovery of their body, the investigators had also found the body of Sandeep's wife Saumya, reported The Washington Post.
The search and rescue teams in the United States recovered the bodies of two more members of the Indian American family that had gone missing while travelling from OR to California about 10 days ago.
"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.
The Mendocino County Sheriff's Office says the bodies of 41-year-old Sandeep Thottapilly and his 9-year-old daughter Saachi were pulled from the Eel River near the town of Leggett on Saturday. Relatives of the Thottapilly family positively identified the items as belongings of their family members, authorities said.
The Thottapilly family, from Santa Clarita, disappeared on April 6 while driving in a Honda Pilot through the Redwood Coast Highway on vacation, officials said.
"Once the body was recovered it was identified as being Siddhant Thottapilly, the remaining missing member of the Thottapilly family".
There is, however, no clue about the whereabouts of their son, Siddhant. Search teams found and identified family members who disappeared more than a week ago while on a road trip from OR to California.
Officials last week determined the vehicle belonged to the Thottapilly family.
According to the San Jose Police Department, the family of Sandeep Thottapilly was supposed to have arrived to visit a friend in the San Jose area on April 6 but did not make it as scheduled. Their last known location was near Klamath near the OR border.
The site of the crash is about 30 miles north of where another family's SUV plunged off of a cliff and crashed on the rocky Pacific Ocean shore.
Sarah and Jennifer Hart and their six adopted children were believed to be in the SUV at the time.