The Maruti Suzuki Victoris is the better option for you, given your high running. The CNG variant will be very efficient, and the car is spacious and comfortable. The boot is also fairly usable thanks to an underbody-mounted CNG tank. One point worth noting is that it does not come with a spare wheel as standard, so if you do a fair bit of highway driving, it would be advisable to get one.
The Kia Seltos is a good SUV, but it will only make sense to buy the diesel for your kind of running, and in that budget, you will not get a version that is as well-equipped as the Victoris. The petrol version will not be efficient and does not make sense for such high running.