can anyone tell me pls there is a way to delete or remove account ?
You can always hit the 'Report to moderator' button and tell mods that you currently ban evading by posting in topics outside Meta and more specifically your ban appeal thread. This is the closest thing that you can do to delete or remove your account. In a sense, you will remove yourself from Bitcointalk.
On a side note, I saw several accounts banned last month that break the rules by posting bounty reports with their alts. I guess, they didn't
self-report...one more thing to do next week. gah