Ages ago, when Shree Rama returned from Lanka, victorious in battle, he crossed the straits and set foot on the soil of Bharat Varsha. Amidst the jubilations, the Rishies noticed Shree Ram strangely quiet and pensive. To their concerned query, Shree Ram expressed his unhappiness over having had to kill Ravana. After all Ravana was a Pulastya Brahmin and in his killing, Shree Rama was weighed down by the sin of Brahma-Hatya’.