Squirrel tail left on chair of domain investor

In an indication of the methods used by indian intelligence agencies to harass harmless domain investors, the tail of a squirrel was left in the chair of a sofa set in the hall of the house of the domain investor. It appears that the intelligence agency officials are putting in a lot of effort to harass the domain investor, without being visible or openly justifying the reason why they are spending so much time and money harassing a harmless civilian.
Does anyone know what is the official reason why officials of indian intelligence agencies like CBI, R&AW, NTRO are leaving the tail of squirrels in the house of domain investors
Is there is any secret code involved in leaving the squirrel’s tail.
Photo of the squirrel’s tail can be provided.