The boys' 100 metres at the Delhi State Athletics Championships was subject to an exodus after word that anti-doping authorities would make a surprise visit got out.

Doctors also made a surprise visit to the Jawaharlal Nehru Stadium in New Delhi to carry out an age test for the event.

WADA is already wary of doping being rife in India as it ranked the country second in the world, behind only Russia, in its list of the number of anti-doping rule violations committed.

"From WADA's perspective, we are aware of the reports and we have concerns about what is being alleged," a WADA spokesperson told insidethegames.

"We are looking into it further, including by contacting the relevant authorities in India to seek more information about what exactly happened and what action is being taken." 

Athletics Federation of India (AFI) President Adille Sumariwalla also confirmed to insidethegames that the governing body would be launching an inquiry into the situation.

The Championships also saw a girl in the junior steeplechase continue to run even after crossing the finish line as anti-doping officers chased her for a sample.

Sumariwalla asked the authorities to make the surprise visit due to the close proximity of the stadium to the New Delhi Laboratory, which is accredited by WADA. 

The former sprinter, who represented India in the 100m at Moscow 1980, is currently in the Chinese city of Hangzhou for the Asian Games. 

Upon his return next week he is going to begin the inquiry to see if the AFI can pass rules that will enable it to better handle the possibility of similar events in the future.

"When I go back we will have a fully-fledged inquiry and maybe we are going to look at passing some rules that if something like this happens how are we going to handle it," Sumariwalla told insidethegames.

"There is no rule set by WADA by which we can actually take action on the seven."