Manglam Luxury Homes: What's the real resale potential?

Since last year I've been really serious about getting into real estate, Ghaziabad specifically. I'm looking at Manglam Luxury Homes, the 3BHK flats are around ₹1.4 Cr. It's my first investment property, so I'm a bit nervous. My parents keep saying location is key but honestly, I'm more worried about the builder's track record. Has anyone bought from Manglam before? Are they known for timely delivery or delays? Also, thinking long-term, what's the resale market like for a project in this price bracket in Ghaziabad? I'm hoping for good capital appreciation, but not sure if there's enough secondary market demand for such high-value flats if I need to exit in say, 5-7 years. Ab samajh nahi aa raha. Any thoughts on the actual resale potential here would be super helpful.