@Tejas Khoday :
Very first trade of the day and i faced this issue:
I was 500 long on Tata Steel and had SL order and partial profit booking limit order in place. Then I wanted to close my position.
1) Initially it wont let me cancel the position by clicking on the "close position"
2)Then I tried dragging the SL line up and it said : Nothing to modify. So i thought may be I cancelled SL and that order is cancelled but not showing as cancelled on charts so i refreshed chart but order line was still there. Then I again tried to drag the SL line but again got the message nothing to modify. So I cancelled the running short order ("close position" worked this time) and at next moment my SL line was hit and now I was 500 short.