Mumbai, Feb. 7 -- Western Railways, which operates Mumbai locals, will carry out a 13-hour jumbo block on both up and down fast lines between Grant Road and Mumbai Central station from 22.00 hrs to 11.00 hrs on Saturday/Sunday.

Maintenance work of tracks, signalling and overhead equipment will be taken up during these hours, the Western Railways said in a brief statement.

The jumbo block is likely to impact the daily commuters on this busy route.

The statement issued by Chief Public Relations Officer of Western Railway, Vineet Abhishek, said during the block period, all up and down fast line trains will be operated on slow lines between Churchgate and Mumbai Central station.

"Some suburban trains will remain cancelled during the block...