A 1200% ROI trade prediction

According to previous posts, NIFTY is in a great correction period and i shorted NIFTY at 23600 when it closed below the recent tendline. Though up and downs were there, we are on our way to 22800 levels. On Monday, NIFTY will open about 250-300 points down from current levels, Which with the options premium will give me an ROI of about 800% (8 times my capital). I will be holding on to the trade to get to the 1000-1200% ROI levels.