Ansal Aastha Mig Zone ka actual rental kya hai?

Did a site visit to Ansal Aastha Mig Zone last week. Price range ₹29-30L for a 1BHK seems okay, but I'm looking at it purely as an investment. I know builder ki marketing, but what's the actual rental yield people are getting there? I'm worried about ghost society risk; investor ratio kitna hai? Also, for a completed project, exit strategy kya hai after 5-7 years? Kaun buy karega, that's my main concern. Any honest opinions from current owners ya brokers who know the ground reality?