Sania made a comeback to Fed Cup after four years and helped India qualify for the play-offs for the first time in history.
With her 18-month son Izhaan present in the stands, Sania had helped India qualify for the Play-offs for the first time.
When Sania Mirza announced her return to the circuit at the end of last year, she routinely had to answer one question.
Ankita Raina pulled off a crucial singles win against talented Aldila Sutjiadi to lock the tie 1-1 after Rutuja Bhosale suffered a crushing defeat against an unranked Priska Madelyn Nugroho.
Rutaja Bhosale and Ankita Raina were again given singles duty, while Sowjanya Bavisetti made her second doubles appearance with Riya Bhatia in as many days.
The onus to bring India back in the contest now rests on India number one Ankita Raina, who is up against world number 29 Qiang Wang.
World number 78 Sara Sorribes Tormo capitalised on a careless performance from Osaka, who made an astonishing 50 unforced errors in the 15 games.
The US was given an early advantage after Australian Open champion Sofia Kenin rolled with a dominant 6-2, 6-2 win over Anastasija Sevastova in the opening match.
After rejecting their request twice, the ITF finally intimated AITA on Sunday afternoon that matches have been shifted out of China.
Romania team captain Nastase was ejected from his team's match in Constanta after a series of foul-mouthed rants.