Agni's another name is pavak (i.e which purifies everything) So, Is burning oneself alive by entering into funeral pyre (chita pravesh) a dharmic way of committing suicide ?
Arjun took a vow of entering into his funeral pyre if he was not able to kill Jayadrath before sunset . Thus it indicates that it is a valid way of committing suicide.
It is different fact that most men don't have the guts to do it . But Is it dharmic way of committing suicide ?