Nifty Put/call Ratio Open Interest - Educational Series 5

Hi All,
Let see today Nifty Put/Call Ratio open interest :

Following is the NSE link for Nifty Put/Call options Open interest :
www.nseindia.co.../optionKeys.jsp?symbolCode...

Now In Market the option (put/call) writers make money (most of time) i.e they say that's the smart money(Even though there is risk of unlimited loss and limited profits)

Can Any one share whats the logic that option writers make money most of time to be called as smart money ?

Coming to current month : In NSE link provided above , There is Call Open interest build up data on left side and put Open interest build up data on right side.

So if you see For FEB NIFTY series :
8800 Put has Open Interest (OI) of 61 lakh
9000 Calls has Open Interest(OI) of 71 lakh

i.e smart money is betting that market expiry will happen between 8800-9000
So if you are call /put buyer just take a note of it .

I knew a blog which used to publish this data in nice tabular fashion daily , but it has stopped doing it from last 3-4 months, If any one has the link to any site or blog which can give updates on this data daily please share.

Disclaimer : Educational purpose only ,Please consult your financial adviser before investing.