Indian rower Dattu Baban Bhokanal finished fourth in the quarter-finals of the men's single sculls to be out of medal reckoning in the Rio Olympic Games .Bhokanal clocked 6 minutes 59.89 seconds to cover a distance of 2000 m, little more than six seconds behind the third and last qualifier from the quarterfinal 4 from Poland.Armyman Bhokanal commenced strongly and was second going past the 500 metre mark but then gradually slowed down to lose his chance of advancing. Bhokanal, the lone rower in fray from India, will now have to fight for the minor placings.Moreover pistol shooter Heena Sidhu, from whom a lot was expected in the run-up to the ongoing Olympic Games, put up yet another flop show to stand a distant 30th out of 40 competitors at the end of the first half of the 25m event for women.In the 30-shot precision round, Heena accumulated 286 points out of a possible 300 with series scores of 95, 95 and 96 that pushed her in the rear of the queue.The rapid fire segment, also of 30 shots, will follow in an hour's time. Another experienced campaigner, 2012 London Games bronze medal winner Gagan Narang, performed poorly in the 10m air rifle to finish 23rd.He would be keen to make amends in the 50m range where he will be seen in action in rifle prone on August 12 and three position on August 14.The 118-strong Indian contingent continued to put on a generally dismal show barring a few exceptions like archer Atanu Das on Day 4 of competitions at the Olympic Games . The talented Atanu Das blanked his Nepalese rival Jitbahadur Muktan 6-0 to reach the round of 16.