Ashwatthama, the son of Drona, is the avatar of one of the eleven Rudras, along with being one of the eight Chiranjivi (the immortals). Drona performed many years of severe penances to please Lord Shiva in order to obtain a son who possessed the same valiance as the latter. Ashwatthama, the powerful son of Drona, though known as the part incarnate of Rudra, was really born of the four parts of Yama (death), Rudra (destruction), Kama (love) and Krodha (anger). Just before Mahabharata war, Bhishma himself declared that it would be virtually impossible for anyone to kill or defeat Ashwatthama in battle as he was the part incarnate of Rudra. Bhishma stated that when Ashwatthama becomes angry, it would become impossible to fight him as he would become "a second Shiva". The dishonoured death of Drona, Karna and Duryodhana left Aswathama infuriated, and this event led directly and in an unwary-like manner, to the annihilation of most of the Pandava lineage by the hands of Ashwatthama himself.J.L Shastri. "The Shiva Purana - The Complete Set in 4 Volumes". Motilal Banarsidass Publishers Pvt Ltd; 2008 Edition As a result Krșna curses him as being unable to heal. It is said that one can hear him wailing at nights in the Kurukshetra region.
Ashwatthama, the son of Drona, is the avatar of one of the eleven Rudras, along with being one of the eight Chiranjivi (the immortals) Drona performed many years of severe penances to please Lord Shiva in order to obtain a son who possessed the same valiance as the latter. Ashwatthama, the powerful son of Drona, though known as the part incarnate of Rudra, was really born of the four parts of Yama (death), Rudra (destruction), Kama (love) and Krodha (anger). Just before Mahabharata war, Bhishma himself declared that it would be virtually impossible for anyone to kill or defeat Ashwatthama in battle as he was the part incarnate of Rudra. Bhishma stated that when Ashwatthama becomes angry, it would become impossible to fight him as he would become "a second Shiva". The dishonoured death of Drona, Karna and Duryodhana left Aswathama infuriated, and this event led directly and in an unwary-like manner, to the annihilation of most of the Pandava lineage by the hands of Ashwatthama himself.J.L Shastri. "The Shiva Purana - The Complete Set in 4 Volumes". Motilal Banarsidass Publishers Pvt Ltd; 2008 Edition As a result Krșna curses him as being unable to heal. It is said that one can hear him wailing at nights in the Kurukshetra region.