The 32-year-old, who has also won world championship medals in the 200m and the long jump and is competing in her fourth Olympics, had comfortably won her 100m heat in Tokyo on Friday with a time of 11.05 seconds, qualifying for Saturday's semi-final.
The ace long jumper got 180 points for her sixth place at the Athens Olympics to move up with 1247 points.
The Indian will be up against Olympic champion Tatyana Lebedeva on Friday, in her season opener, the IAAF Super Athletics Grand Prix in Doha.
According to reports, Anju (finished 5th) along with fellow long jumpers, Australia's Bronwyn Thompson (4th) and England's Jade Johnson (6th), have urged a probe into the long jump event at the Athens Olympics. The trio has alleged that the performance of the Russians - Tatyana Lebedeva, Irina Meleshina and Tatyana Kotova - who were on the podium at Athens 2004, - were not clean as they had been banned later for failing dope tests.
Long jumper Anju Booby George expressed happiness on Tuesday after her second place finish at the 2005 Monaco World Athletics Final was upgraded to a gold medal, saying the frustrating time she endured for last nine years was worth the wait.
A summary of sports events and persons who made news on Thursday