A stock exchange filling said sales rose to 640 million rupees in the December quarter from 459 million, a 39 percent rise from a year earlier.
Sri Lankan hotels reported full houses last year on the back of a boom in arrivals after the end of the island's 30-year ethnic war in 2009.
The peak tourism season in the country coincides with winter in the northern hemisphere with December and January usually the best months for hotels.
Galadari showed steep gains in foreign exchange earnings, a 108 percent rise in the December 2010 quarter to 544 million rupees compared with 244 million in December 2009.
The hotel had earlier borrowed from its Middle Eastern parent firm to help tide over losses.
The December quarter accounts