According to the present schedules display, SriLankan Airlines appears to be reducing its flights to Mumbai, BOM effective the start of the northern Winter season.
UPDATE: The airline has brought forward the reduction.
UL145/6 which is presently operating thrice weekly will be cut to twice weekly from July and will be cancelled from August. This was previously planned to be cancelled by November.
However note that the airline was in the process of increasing its Indian flights under a newly signed bilateral and it is possible that this flight might have been removed to pave way for loading a new flight.
Presently planned schedule, effective 1st of August.
UL141 CMB BOM 0001 0225 D 320
UL142 BOM CMB 0325 0545 D 320