Sohna 2BHK hunt: My maintenance charge hack

Selling our big house finally after kids moved out, looking for a smaller 2BHK in Sushant Lok II, Sohna. Pata chala, actual maintenance charges check karna bohot zaroori hai RWA records se. Builders ka promise aur real figures mein farak hota hai. Koi tips for verifying RWA effectiveness ya resale ease? Hope this helps someone.