Best way to get to TRV airport from Thabanoor for an early flight?

I have a flight from Trivandrum Airport at 3:45 AM, so I need to be there by 12:45–1:00 AM. What’s the best way to get from Thabanoor to TRV at that hour? •Do Uber or Ola operate reliably that late? •Are there any taxi services I can prebook? •Any other options worth considering? I’d like to avoid unnecessary stress (or an impromptu all-nighter at the airport). I’d appreciate any advice