In the 9-months to September group profits were 4,339 million rupees, flat from 4,335 million rupees in the same period last year, interim accounts filed with the Colombo Stock Exchange showed.
Revenues for the nine months were up 10 percent to 35 billion rupees from 31.9 billion rupees. The firm's top line was hurt by a court order which asked it to reverse a tariff increase.
SLT is an affiliate of Malaysia's UT group, though still majority controlled by the government of Sri Lanka.
SLT said it had invested one billion rupees in Mobitel through 10 rupee 12 percent cumulative preference shares and 500 million rupees through 14 percent preference shares, in the latest accounting period.
SLT had invested 107.9 million rupees in Sky Networks (Pvt) Ltd in w