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Lalita Babar failed to make a mark in the women's 3,000-metre steeplechase as she ended up at the 10th place in the final.
Athlete Renjith Maheshwary finished a disappointing 30th to crash out of the qualification round in men's triple jump.
Even India's campaign in the Rio Olympics wrestling event got off to a disappointing start when Ravinder Khatri crashed out of the Greco-Roman 85kg category after suffering a first round loss.
Khatri's early elimination has left only compatriot Hardeep Singh (98kg) in fray in the Greco Roman category.
Here is India's schedule for August 16 (Tuesday) in Rio de Janeiro
Men's 98 kg Greco-Roman Qualification round
Hardeep Singh (6:30 PM IST)
Women's singles quarter-final
PV Sindhu Vs Wang Yihan (China) (3:25 AM IST - Aug 17)