Trying to gauge Ansal Aastha Mig Zone's actual investor worth

My current 2BHK investment in Rajkot is giving decent returns, but I'm looking to upgrade my portfolio. I'm checking out Ansal Aastha Mig Zone, it's completed and the price range seems interesting for its location. For an investor, what's the actual rental yield people are seeing there? I'm trying to calculate a realistic ROI. Also, beyond the purchase price, are there any hidden charges or high maintenance costs that eat into profits long-term? Thinking about exit strategy, how liquid is the secondary market for these flats after 5-7 years? Want to avoid getting stuck.