Indiabulls vs Mahagun: Which is better in Noida?

Hey guys, planning to invest in Noida. Indiabulls Enigma or Mahagun Mantra I? Which one has better ROI and resale value? Anyone has experience with their construction quality and delivery timelines? Also, what about customer service after possession? Mujhe advice chahiye! What do you think? Kya aap logon ko pata hai?