Mumbai from other parts of India...
those who are regular train commuters never had problems even during peak hours; these fateful, who got killed are generally new to mumbai....

It is not only difficult to curb such accidents but almost impossible due to the spurt of people travelling by local trains in Mumbai every day. Hopefully with entry of metro rails could help to reduce the number of casualities.

Just for information;
Indian Railways is largest State owned and managed institution in the World employing over millions of staff (recorded under Guiness book of World records).