I hate to throw a dampener in here, but your flights are all Jet Konnect or Jet Lite. Of late, these haven't had a great track record for on-time performance. Plus, evening arrivals and departures in and out of DEL are usually delayed for some reason or the other (now that "winter" has started, this means that the morning flight was delayed and that causes a domino effect). So the 50m layover in DEL would be cutting it a bit too fine, in my view.