Mohali projects: Which builder has better post-possession support?

Mohali Sector 115 — just moved into my 3BHK last month. Possession March mein hua tha, but already construction quality issues dikh rahe hain, like minor plaster cracks. Things nobody tells you before handover, you know? I'm thinking of a second property for my parents, probably a 2BHK. Considering Godrej and Emaar projects here. What's their customer support like post-possession? Aur hidden charges ka kya scene hai? Which builder provides better peace of mind, honestly?