Central Railway and Western Railways announced,Mumbai Local Train passengers will face Mega Block on Sunday 24 - 06 - 2012.
CENTRAL LINE
Matunga - Mulund  (10:35 am to 3:35 pm)
Dn fast services leaving CST from 10.20 am to 3.17 pm will be diverted o­n Dn slow line between Matunga and Mulund stations.  This train will stop all the stations between Sion and Mulund Stations.
HARBOUR LINE
Vashi -  Belapur - Panvel (11:00 am to 4:00 pm)
Dn Harbour line services for Vashi / Belapur / Panvel leaving CST from 10.12 am to 3.25 pm and all Up Harbour line services for CST leaving  Vashi / Belapur / Panvel from 10.20 am to 3.29 pm will remain suspended.
Central railways also announced that Special trains...
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will be run on n CST - Mankhurd and Thane - Panvel sections during the block period. 
Harbour line passengers are allowed to travel via Transharbour and main line o­n their season tickets from 10.00 am to 6.00 pm on 24 - 6 - 2012.
WESTERN LINE Mumbai Central - Santacruz (11:00 am to 4:00 pm)
Jumbo block will be taken for 5 hours from 11.00 am to 4.00 pm on Sunday,  24 - 6 - 2012  on Dn Local Lines slow line between Mumbai Central and Santacruz stations. During this time period, Dn local line trains will run on Dn through line fast line between Mumbai Central and Santacruz stations. These diverted trains will not halt at Mahalaxmi, Elphinstone Road and Matunga Road for want of platform. Passengers are allowed to travel in opposite direction for their destinations between Bandra and Mumbai Central stations. All 12-car slow services will take double halt at Lower Parel, Mahim Jn. and Khar Road stations.