Paul,
From the references for the three companies that I have found, there is only one that mentions Meiktila, so see if this fits:
quoted from "Wait for the Waggon" Edited by John Sutton
"the other transporter unit, 590 Company, served 255 Indian Tank Brigade and probably had the hardest task of them all. In order to effect a surprise crossing of the Irrawaddy at Pakokku, and from there make a dash for Meiktila, 4 Corps,which included this tank brigade, was switched from the left flank of 14th Army to the right and sent down by way of the Kabaw and Gangaw Valleys. The route was difficult: it was 400 miles long of which 110 through the Kabaw Valley were over a fair-weather road, already the L of C of 33 Indian Corps and deep in dust. The difficulties encountered by 590 Company in moving the tank brigade over the last 200 miles, without using too much track mileage, were immense. The whole move took eight weeks to complete because of the arduous nature of the route and the lack of transport. Throughout this period the company worked extemely hard in terrible conditions and carried much praise for their sustained efforts."