Keralite swimmer Sajan Prakash will compete in men's 200m butterfly heats.
Australia shot into lead in the first quarter and pumped in three more goals in the second quarter to lead 4-0 at half-time.
She has still qualified for the beam, floor, all-around and vault finals.
The Olympic silver medallist had expressed her wish to eat pizza after her feat at the Tokyo Games.
The six-time world champion defeated Miguelina Hernandez Garcia of Dominican Republic, 4-1, on Sunday.
Batra defeated Ukraine's Margaryta Pesotska, 4-3, while Sathiyan lost to Hong Kong's Lam Siu Hang.
Another Indian shooter Yashaswini Singh Deswal also failed to bag a medal, finishing 13th in the 10m air pistol event
Ahmed Hafnaoui struck gold in men's 400m freestyle while the hosts celebrated a surprise gold for Yui Ohashi in the women's 400m medley.
Spain's Sara Sorribes Tormo knocked out the Australian in straight sets
Boxer MC Mary Kom, badminton ace PV Sindhu, shooter Manu Bhaker and tennis star Sania Mirza will be in action on the third day of the Olympics on Sunday.