Central Excise Mumbai website has info about jurisdiction, revenue, Mumbai Zone I, IV, II, III,IV, V, Belapur, Raigad, Thane I and II commissionerates.
Mumbai Central Excise website has links to service tax, customs, download forms, budget, report evasion, top 10 assesses, list of holidays etc
Web : http://www.mumbaicentralexcisecbec.gov.in/