A number of personal belongings like phones, wallets, luggage bags, passports, and other identification were found among the debris, along with parts of the plane.
Flight JT-610 was on a scheduled flight from the Indonesian capital to Pangkal Pinang, the main city in the Bangka Belitung Islands.
Bhavye Suneja, a resident of Delhi's Mayur Vihar was reportedly the captain of the Indonesian carrier that vanished from radar just 13 minutes after taking off from Jakarta.
"We can confirm that one of our flights has lost contact", Lion Air spokesman Danang Mandala Prihantoro told the Associated Press.
Family members arrive a Jakarta airport after Lion Air crash.
Around 160 search and rescue personnel in several ships and helicopters were at the suspected accident site to try to locate survivors and the plane's black boxes, which will serve later to clarify what happened, Efe news reported.
Raiders GM won't say Derek Carr is untouchable in trade talks
While the 33-year-old has flashed upside this season, it's going to be worth watching to see what he can do as the go-to receiver. Dallas (3-4) has struggled to score points while losing all four road games, including 20-17 on Sunday at Washington.
"A few flakes of Lion Air plane that crashed in waters of Karachi", he wrote in the first tweet, accompanying the photos. The plane also had 3 crew under training and 1 technician, the statement said.
"We don't dare to say what the facts are, or are not, yet", Edward Sirait, the chief executive of Lion Air Group, told Reuters.
The Boeing plane disappeared Monday morning and the search is concentrating in oil-slickened waters where debris has been found.
"The Australian Embassy in Jakarta is making urgent inquiries with local authorities to determine if any Australians were affected", the statement read.
"This plane previously flew from Denpasar (Bali) to Cengkareng (Jakarta)".
The effort to find the wreckage and retrieve the black boxes represents a major challenge for investigators in Indonesia, where an AirAsia Airbus jet crashed in the Java Sea in December 2015.
The pilot of Flight 610 had more than 6,000 flying hours while the co-pilot had more than 5,000 hours.