The top 20 option contracts on individual securities traded are as under:

Symbol	Exp Date	Str Price	Opt Type	No of Cont
DLF	25/04/2013	260	CE	6587
DLF	25/04/2013	250	PE	4199
DLF	25/04/2013	270	CE	4027
DLF	25/04/2013	240	PE	3798
DLF	25/04/2013	250	CE	2836
DLF	25/04/2013	280	CE	2711
ICICIBANK	25/04/2013	1100	CE	3083
RCOM	25/04/2013	70	CE	4128
RCOM	25/04/2013	75	CE	2824
RELIANCE	25/04/2013	800	CE	5050
RELIANCE	25/04/2013	820	CE	3965
RELIANCE	25/04/2013	780	PE	2560
SBIN	25/04/2013	2150	CE	6190
SBIN	25/04/2013	2200	CE	5824
SBIN	25/04/2013	2100	PE	5352
SBIN	25/04/2013	2050	PE	3797
SBIN	25/04/2013	2000	PE	3383
SBIN	25/04/2013	2100	CE	3355
SBIN	25/04/2013	2300	CE	2899
SBIN	25/04/2013	2250	CE	2651