Mumbai: Commuters on Western Railway will face disruption this weekend due to a block between Mahim and Bandra. It will be carried out on the intervening nights of Apr 11-12 and Apr 12-13. On Apr 11-12, the block will be in force from 11 pm to 8.30am on the Up and Down slow lines, and from 12.30am to 6.30am on the Down fast line. On Apr 12-13, it will extend from 11.30pm to 9am on the slow and Down fast lines, and from 11.30pm to 8am on the Up fast line. tnn