The Kings Homes' RERA history needs deeper digging

Spent Saturday checking out The Kings Homes. I'm upgrading from my 2BHK, investor angle se dekh raha hoon. Mera hack: builder ki RERA history zaroor check karna. Real delivery track record dikhta hai. Kings Homes mein minor delays dikhe. Capital appreciation from pre-launch? Current price justified? Any due diligence tips?