just track your nifty option here

nifty 23/09/2009
Open 5019.95
High 5030.75
Low 4957.05
Last 4969.95

oct09 nifty5000pe 23/09/09
Open Price 150.00
High Price 178.00
Low Price 144.95
Last Price 169.85
Prev Close 146.00

oct09 nifty4900pe 23/9/09
Open Price 115.90
High Price 134.80
Low Price 108.30
Last Price 125.50
Prev Close 110.85

oct09 nifty4800pe 23/9/09
Open Price 80.00
High Price 99.15
Low Price 78.15
Last Price 92.00
Prev Close 82.70

oct09 nifty4700pe 23/09/09
Open Price 65.00
High Price 70.95
Low Price 54.15
Last Price 65.70
Prev Close 58.70