Dear anandraos,
Below are the answers to your queries:
Ans (1) R1 and S1 are Nifty Strike prices so buy puts at Stricke price = R1 at 10:30 AM if Nifty Spot is 20pts or more dwn from the price at 10:00 AM etc.
Ans (2) If R1 - S1 is greater than 300 AND less than and equal to 400 then, it safe to trade in either direction depening on trend. If trend is up like now then, you can buy more calls at S1 i.e. no. of calls bought at S1> no. of puts you buy R1 bought as per trend.
Ans (3) If range is outside (300,400] then, sideways strategy. Trade with equal no. of calls bought at S1 and puts bought at R1.
Ans (4) This never tells that Nifty will come down to these levels, these are res.(R1) and supp. (S1) for the week only.
Regards