Cloth tied to Fan Vs mark on neck

I believe most of you must have seen the pic of mark on SSR's neck. Sorry, I am unable to put that picture but you might find on many youtube videos, news etc.

Note here, the length of cloth (his kurta) which should be tied to fan as well as his neck... my God! 

I am adding a pic of the cloth that was hanging on fan of his bedroom. Do you really think that the strong and "clear" mark can be made with a cloth like that? Had it been a cloth like that (one from image) it would have a strong but "blurred" not a very clear mark. Strange? was it some rope, belt, plastic?

In the same video from youtube, it was also shown that the same green cloth was on the bed but later it was hanging on the fan.

Other points are: his feet posture, face injury, saliva not coming, position of tongue and eyes...

Fair investigation is much needed which will not resolve this mystery and few more which happened in the past. Also, hearing that the servant kept changing his statement and now gone missing....