Heavy rain on Sunday forced the final of the ATP Mumbai Open between world number 13 Tomas Berdych and 22nd-ranked Dmitry Tursunov to be put off by a day, organisers said.
Incessant rain since Saturday night drenched the Cricket Club of India courts, prompting tournament director Gaurav Natekar to abandon any thoughts of play at 6.30 pm (1300 GMT).
The final will be played on Monday, weather permitting. More rain has been forecast for the next 24 hours.
"It's unfortunate the rain ruined things a bit after six days of good tennis," said Natekar. "But there is little one can do about the weather."
If no play is held on Monday, Berdych and Tursunov will both be declared runners-up and each given the finalists' prize money of 30,600 dollars.
The doubles final between Mario Ancic of Croatia and Mahesh Bhupathi of India against the Indian pair of Rohan Bopanna and Mustafa Ghouse will be played on Monday after the singles final.