Given your requirements, the Nissan Magnite and Renault Kiger are worth a look. There's plenty of space for rear seat passengers, and there is enough room for three passengers to sit in the back in reasonable comfort. 

You could also consider the superbly packaged Renault Triber. It's three rows of seats give lots of flexibility in seating, and the option to slide the middle row also means you can open up lots of legroom by moving the seat to its rearward position. 

There are a plethora of automatic petrol cars available within your budget. Given your monthly travel is just 200-300km, we will give less weightage to fuel economy and more weightage to driving comfort. As we don't know other preferences, here's a shortlist of the best options by body style -  

Hatchback - Hyundai i20 IVT Asta (O), Citroen C3 X Shine AT
Compact sedan - Honda Amaze CVT ZX
Compact SUV - Nissan Magnite Turbo CVT, Renault Kiger Turbo CVT Emotion

That is quite a tall order to fit into your budget of Rs 10-11 lakh. However, given your requirements, we would recommend the Nissan Magnite or the Maruti Suzuki Fronx. 

Both compact SUVs give the option of a fuel-efficient naturally aspirated petrol engine with an AMT auto gearbox at a good price, or a more powerful turbo-petrol engine with an auto gearbox that's not as fuel-efficient, but much smoother. 

Both have robust suspension that should be capable both in the city as well as on the highway. That said, while both can fit 5, the back seat will be a tight squeeze for 3, but at this budget, almost every car would be. 

Here, the Nissan Magnite has the edge on space, and overall, it is more affordable and a better value, too. Hence, it would be our pick for you.

It's hard to specify a car without knowing something about your needs, but yes, the Nissan Magnite is a good car. The turbo petrol engine is a very good performer, and along with the CVT automatic gearbox, it delivers an enjoyable drive experience. 

The ride is good, there's a good amount of equipment, and it's very well priced. With the update, Nissan has also addressed some of the cost-cutting issues around the cabin.     

Between Rs 15-20 lakh, the best choice for your needs would be the Skoda Kushaq 1.5 TSI with the automatic DSG gearbox. 

Being a mid-size SUV, the Kushaq gets plenty of practicality, but the highlight is its powertrain that has a 150hp turbo-petrol engine and a 7-speed DSG gearbox that is quick to shift. 

Also, the handling manners and chassis tuning make it enjoyable on long trips and around twisty roads. The feature list is also impressive, and you get a lot of kit for the money. The sound system is worth a mention too, and the overall build quality is excellent. The Kushaq would be the right choice and a great replacement for the Nissan Magnite.