[what is invested capital exactly and is it static?]

Ok I'm not too fussed about what the exact definition of Invested Capital is but the most useful formula I find is

 

Net working capital + Non-Current Assets - Excess Cash - Investments not related to operating business 

[India]

What are some investing resources that are unique to India? I've come across Equitymaster and Dalal Street Investment Journal but haven't found anything else. Is there a Valueline/Japan Company Handbook equivalent?