The 25-year-old from Kerala was third fastest in Heat 2 and also overall third with a timing of 56.77s. Joining her was compatriot Jauna Murmu (59.20s) as the last best loser.
Anu had won a silver at the Asian Championship held in Bhubaneshwar. Bahrain's Oluwakemi Adekoya was the fastest woman, who clocked 54.87 and was followed by Vietnam's Quach Thi Lan.
Meanwhile defending champions India reached the quarterfinals of the men's compound team, edging out a fighting Qatar 227-213 in the 1/8 Elimination round at the Asian Games, here today.
The team comprising Abhishek Verma, Aman Saini and Rajat Chauhan won all four sets. However, the second and third sets were very close with scores being 65-55 and 56-54.
Abhishek and Chauhan were part of the team that won gold in Incheon four year ago. The Indian team next faces Philippines.