India edge into first-innings lead on day two against Australia in Delhi
Ojha is playing in his 22nd match, making him the third quickest Indian to the milestone after Erapalli Prasanna and Anil Kumble.
Australia trail 3-0 in the four-match series and are without skipper Michael Clarke for this match due to a back injury. Watson, one of four players who missed the defeat in Chandigarh last week for disciplinary reasons, is leading the side in Clarke's absence.
Check out the grounds and cities hosting England Down Under this winter