For the 26-year-old Nethra, this is the second successive time that she has failed to progress to the medal race.
Sarvanan was ranked fifth in the seventh race to go down to second spot with five more races lined up in the Olympic Qualifying Event.
Nethra Kumanan became the first Indian woman sailor to qualify for the Olympics after making sure of a top-place finish in the laser radial event of the Asian Qualifiers, in Oman, on Wednesday.
The Indian sailing team have embarked on their journey to the Tokyo Games on Monday.
Another Indian, Vishnu Saravanan was at 23rd position overall out of 35 sailors in the laser event, while Nethra Kumanan was placed 31st with 176 net points out of 44 sailors.
There were four instances of two Indian sailors qualifying for the Olympics earlier but they took part in the same event. This time in Tokyo, India will be taking part in more than one event in sailing.
A look at Indian athletes' showing at the Tokyo Olympics on Tuesday, July 27.
Rajesh Choudhary picked his second successive Asian Games bronze medal when he finished third in the Laser Radial Open event in Doha on Friday.
a look at the country's athletes' showing at the Tokyo Games on Thursday.
Nethra had left the sport of sailing for one year after failing to qualify for the Rio Olympics.
A summary of Indian athletes' showing atthe Olympic Games in Tokyo on Sunday.
Varun Thakkar Ashok and Chengappa Ganapathy Kelapanda won bronze with a total of 53 after race 15 in the 49er men's event.
Argentine helmsman Santiago Lange and crew Cecilia Carranza Saroli won gold in the Nacra 17 mixed-sex catamaran class at the Rio 2016 Olympics after a fast medal race that saw wind pick up smartly on the Pao de Acucar course on Guanabara Bay.
'I've been working hard for this for the past 18 months and away from home for a long time...and it is good to know that it all paid off and the event is done and we've got what we came for'
Olympic sailing began an 11-day regatta on Monday with near perfect winds as competitors showed little fear of heading back into waters criticised for sewage-borne pathogens and floating garbage.
Following is the schedule of Indian contingent on the seventh day of the Asian Games on Saturday.
India's schedule for Thursday, the sixth day of competition at the Asian Games, in Incheon.
If Harshita has her way, she would happily miss the exams again but she can't.
Olympic bronze-medallist M C Mary Kom once again led the charge as she packed a powerful punch by assuring herself at least a silver medal in the fly weight category (48-51kgs) after beating Vietnam's Le Thi Bang at the 17th Asian Games, in Incheon on Tuesday.
Damaging wind gusts, a fresh doping controversy and the robbery of a visiting government minister presented the Rio Games with a perfect storm of problems on Sunday, forcing organisers to scramble to keep the world's biggest sporting event rolling on.
Sailors and rowers were not worried about getting sick during the Rio Olympics next year despite reports that waters to be used for events have pollution levels equivalent to raw sewage, competitors said on Thursday.
Summary of sports events and persons who made news on Saturday
'At the Asian Games I had a dream, to stand on the podium and have the tri-colour hoisted.' 'I missed one thing in Jakarta -- the national anthem being played.' 'I hope to make it happen at the Olympics by winning gold.'
Indian men ended their campaign in the pistol events on a winning note by shooting down a silver medal in the 25m centre fire event even as the women's team exited from the 50m three-position competition without success at the Asian Games in Incheon on Friday.
Check out the gold medallists on Day 11 of the 2016 Olympic Games in Rio de Janeiro on Tuesday.