Your Budget - 9-10L (Ex-Showroom) which is around 13-14L On Road.
Your Requirement - City Travel - Traffic -70-80Kms daily, Good Mileage
My Suggestion - Since You are a family of 4 + 1 Child. A Five Seater would suffice. Since you have listed both Maruti Suzuki Products, I would recommend a better quality, safety and reliable product.
Your Option in the Automatic Sedan Segment - VW Vento Highline / Skoda Rapid 2017 (New) 1.5 Diesel / VW AMEO, Hyundai Verna 2017 (New) and lastly Maruti CIAZ if none of the latter appeal you + many more
So if you haven't bought a car then I hope my suggestions help you, if you have already purchased your car then Congratulations and enjoy a safe drive.
Sammeer S Pednegar