Hey are you looking for neurologist near Alwarpet ? Thrombotic stroke results from a problem with in the blood vessel that supplies the brain. This is most likely to occur from arteries clogged with fat deposits called plaques they can partially block the artery and can rupture and bleed forming a clot. This blood clot can further clog or completely block the artery which then slows or prevents blood flow to the area of brain fed by the artery . Blood clotting disorders can also cause clots in some people