Income tax slabs for year 2011-2012?

I work as a software engineer with private IT firm in Mumbai. My annual package is 3,72,500. I would like to know what will be my nontaxable amount slab? Also I am investing 90000Rs under 80 C section...so what would be my tax amount for the year 2011-2012? If I plan to deduct it monthly, how much deductions will happen?