I think this fight is premature. I'm thinking of putting together a Nagraj respect thread (will take a while, but I think it would be cool to see him in some versus fights).
For the record, I think that Namor is stronger and faster, but would DIE against a a CIS-less Nagraj. Nagraj's breath is so venemous it can make people and objects melt into thin air.
From what I know of him, he should be way too versatile for Namor, he can shape shift, become intangible (only for a few seconds) his breath and bite are deadly to humans, he has psychic powers which vary in power from issue to issue, he has a healing factor, super human strength, durability, agility, speed etc.
He can cast illusions, has energy attacks and can summon limitless snakes from his own body which he can use as weapons.
Namor I dare say is stronger than he is and maybe more durable but there seem to be so many ways Nagraj could take him down without resorting to a slugfest.
his snakes are stronger than steel. They once hold off huge sky scrapper.
Nagraj's best feats -
1) In veenom comic, he Tanked a missile which was as powerful as multiple nukes and had enough power to vaporize all entire oceans of earth. And he wasn't hurt much. Then he blewed away all clouds, fire emitted from explosion just by a whiff
2) In sarvyugam comic, he created a small black hole which was NOT enough to consume dwarf planets. Someone amplified it via chain reaction and then it consumed those dwarf planets.
3) In upcoming sarvdaman comic, he slammed a guy on surface of a star(not ignited) so hard, that entire STAR moved significantly away from his place.
and he has hypnotism, shape shifting power(has limit), go intangible for 3 seconds, poisen breath which can melt rocks, telepathy etc etc
However most of RC fans are stupid as f**k. so they think nagraj has no limits and can do whatever he want, can destroy galaxy, universe LOL