Your two options in this price range are the recently facelifted Tata Punch and the Hyundai Exter. Both these sub-compact SUVs are available with petrol and CNG options. 

The Exter has a smoother powertrain and slightly more interior space. But the Punch feels tougher, is more comfortable, is better equipped and has scored a 5-star Bharat NCAP crash test rating. 

Moreover, the Punch CNG is available with both manual and AMT automatic gearbox options, and across more variants, which gives you more choice. 

We would suggest you have a look at the Tata Punch. With its tall stance, the car has good headroom and will meet your requirement of good ground clearance, which stands at 193mm unladen. It will also meet your safety requirements, as the car is well-equipped with six airbags and ESP as standard across all variants. 

Tata Motors also says the Punch will secure a 5-star BNCAP crash rating. Since you run daily, running is high, and you are in the city, you could consider the CNG automatic version. 

The Maruti Suzuki Wagon R will suit your requirements of an automatic car that's easy to get in and out of and below Rs 7 lakh. The car is also easy to drive with light controls. It is, however, a bit old now, and if you would like something newer and more exciting, you could look at the newly launched Tata Punch. The car's taller height allows for easy entry and egress, along with doors that open to a full 90 degrees. It will require you to stretch your Rs 7 lakh budget, though.  

Yes, seating three adults at the rear of the Tata Punch will be tight. Tata Motors has recently unveiled a new updated Punch; however, changes are to the features and engine, space inside will remain the same. 

We would recommend the Mahindra XUV 3XO as the rear is spacious, particularly in terms of width, which is what you will need to seat 3 adults at the rear. Moreover, the car has a comfortable ride and is well-equipped too. 

However, do not expect class-leading fuel efficiency as the engines are tuned with a bias towards a more lively performance.   

The Tata Punch EV is a pleasure to drive and an excellent city car, but unfortunately, it doesn’t have the range to do 500km without a charge. Stopping to charge on the highway is not advisable, as the charging infrastructure isn’t very reliable. 

If this is going to be your only car, it's best to go for the Tata Punch 1.2 petrol automatic. It’s nowhere near as smooth or peppy to drive as the Punch EV, but you get the same rugged build and comfortable ride.

Of the two options you have shortlisted, it's the Maruti Suzuki Fronx that we'd recommend. It's got the peppier engine, which will make a big difference on your highway journeys. 

Given your limited usage in the city, an automatic isn't essential. Again, were you to opt for the automatic options, it's the Fronx's AMT that's superior to the one you get on the Tata Punch AMT.