We'd suggest you consider the Maruti Suzuki Baleno. Its 1.2-litrefour-cylinder petrol engine delivers pleasant performance, and fuel economy is really good. The Baleno's light controls also make it an easy vehicle to drive, which is something you will appreciate over your long commutes. 

You could get a Baleno MT Delta within your budget. But if you are open to spending a bit more, we'd urge you to get a Baleno MT Zeta that adds in more features. It includes a rear wiper, tilt and telescopic steering adjustment, and wider tyres that would make your commute safer and more comfortable.

All the models you have shortlisted have their highlights and weaknesses. The Maruti Suzuki Brezza is a well-rounded vehicle that excels in space and comfort. Maruti's service network is a huge plus in its own right. However, as you rightly identified, the Brezza is not exciting to drive. This Maruti Suzuki car's performance is fine in city driving conditions, and it will cruise comfortably on the highway. But the engine lacks punch in case that's important to you. 

If strong performance and good handling are requirements, the Skoda Kylaq and Mahindra XUV 3XO are the ones to be most interested in. Both models are good to drive, but fuel economy could be a concern in bumper-to-bumper city driving. 

We feel you will find a good balance in the Hyundai Venue 1.0 Turbo DCT. The engine is strong enough, and the gearshifts are also nice and quick. DCTs do tend to fumble at low speeds and aren't as smooth as torque converter autos. Although, it's not really an issue and surely not to the extent of avoiding the gearbox type altogether. 

Fuel economy should also be better than what you'd get with a torque converter.  The new Venue is also quite a wholesome package. The cabin is quite spacious, and the material quality is impressive. 

Without knowing further requirements, it is hard to recommend the ideal pick for you. However, we feel the New Kia Seltos will be the best pick in your budget. 

Prices will only be announced on January 2, but assuming a reasonable increase over current model prices, you should be able to get a decently equipped model within Rs 17 lakh. The Seltos has the edge over the other two with a far superior naturally-aspirated petrol engine. The Seltos also scores for space. 

The Maruti Suzuki Victoris is a sensible package and is good value. However, the dull engine and relatively small cabin mark it down. Tata's Sierra is the roomiest of the three options, but versions within your budget miss many features that you'd expect. 

The bigger issue is that the Sierra's 1.5-litre naturally-aspirated petrol engine feels underpowered, and performance is disappointing.   

Given your requirements, your best bet will be the Maruti Suzuki Brezza. It is powered by a 103hp, 1.5-litre, four-cylinder naturally aspirated petrol engine. The mid-spec Brezza VXi MT is priced at Rs 9.26 lakh (ex-showroom). It comes with all necessary features like a touchscreen infotainment system, 6 airbags, a height-adjustable driver's seat, auto climate control, electrically adjustable and foldable outside mirrors, rear parking sensors and more.

Firstly, we don’t think you should worry about diesel restrictions on new cars in Mumbai. The current diesel engines are quite clean, and if there is a ban in the future, it will only be the older diesels that will be taken off the road. 

The Maruti Suzuki Victoris hybrid would have been a good choice. But as you said and we have pointed out too in our tests, the boot space is compromised because of the hybrid batteries, and the rear seats are not very spacious. 

The other cars you have listed are all turbo-petrol petrol, so they won’t be economical and will burn a hole in your pocket if you drive 80km every day. Since you have shortlisted some compact SUVs, we suggest you look at the Hyundai Venue diesel. It has just been launched, so it's very fresh and will age well over a 10-year lifecycle, and the diesel engine is very efficient and keeps your running costs under control.
 

We would lean towards the Citroen C3X Shine with the 1.2 turbo engine and six-speed AT. It's a little above your budget but will suit your needs best as it is extremely comfortable, has a superb suspension and the best powertrain for the price. 

For highway driving, it is the best of all the options you have shortlisted because of the brilliant engine and dynamics. However, we have added that Citroen’s dealer network is not the best, and hence, after-sales service could be a worry. 

If you want to play safe, go for the Maruti Suzuki Fronx, it's well equipped, reliable and comes with low-cost maintenance. It’s just that for your budget, you will get the 1.2 petrol mated to an AMT, which is nowhere near as nice to drive as the C3X.