The NADAP accepted Pansare's argument that she had used face-packs and other cosmetic products containing geranium oil and root extract which had led to her positive result.
At the event, World Record holder, Ukranian Andriy Kalyna won the gold medal after clocking a speed of 1:07.05 minutes. Austrian Andreas Onea won silver and Krzysztof Paterka from Poland settled for the bronze. Their timings were 1:12.99 minutes and 1:14.56 minutes respectively.
In the backstroke final, Lochte clocked 1min 53.79sec, while Poland's Radoslaw Kawecki set a new European record at 0.45 back with Tyler Clary, the Olympic champion, taking bronze at 0.85 adrift.
The 17-year-old favourite finished a full second behind the medallists as Hungary's Katinka Hosszu claimed gold.
The 16-year-old broke the four-year-old mark at the swimming world championships in Barcelona on Tuesday.
Virdhawal Khade is the national record holder in all freestyle sprints from 50m to 400m as well as in the 50m butterfly stroke in which he scooped up a bronze in the 2010 Guangzhou Asian Games.
It was the fifth failure involving three women swimmers who have tried to make the marathon swim since 2011. Jellyfish stings and strong currents have been the main impediments.
Lochte, winner of 11 Olympic medals and holder of three world records in the individual medley, told media it's not a question of if the 27-year-old Phelps will return but when, reports Xinhua.
Mark Anderson becomes chief executive, replacing Kevin Neil who quit in the fallout from last summer's Games, with the swim team's performance marred by ill-discipline, drug use and drunkenness.
Phelps, the most decorated Olympian of all time with 22 medals, retired from swimming after bagging four golds and two silvers at last year's London Olympics.
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