Neighbour plot owner has opened a window/roshandan forcefully in my plot.

I have a plot on which my neighbour plot owner has opened a window/roshandan forcefully, even after requesting him to close it, he is so adamant not closing it. Actually he is a politically active person having lot of people in his back. 1) What to do in this condition? (Usually indian court takes lot of times like 10 years to solve a civil case, actually I saw in the newspapaer that 3.5 crore cases are pending in indian court) 2) Kindly let us know how much land we have to leave in future due to this illegal activity, I have heard from somewhere that when you will construct something you have to leave a area equivilalent to 3*3 square feet in front of window/roshandan because you cannot stop anybody air and sunlight. Please advice us. Any help would be appreciated.