Sure -
For september write this strangle
Write 9000 CE - CMP 75 (so you will get approx 70-75 premium lets say tomm)
Write 8800 PE - CPM 47 (so you will get approx 40-45 premium lets say tomm)
Combined premium received = 70+40 =110 points
Margin needed to write this strangle = 89,923 (lets say 90,000)
Now how do you manage this trade ?
Rules
1. So long as NF is between 8800 and 9000 you do nothing.
2. If NF goes below 8800 you short one NF
3. If NF goes above 9000 you go long on NF
Lets assume worst case that you actually do need to use this NF trade, then margin requirement is 1,10,078 (lets say 1,11,000).
So on max total margin of 1,11,000 you will stand to make 80-110 points. (110 points if you hold till expiry , I do not recommend that).
Your 6% target is achieved when you get 88-90 points out of the maximum possible 110 points.