First of all, this section is for mobile phones only
If you are looking for 15-18 lakh on road price, then I'll suggest you look at these... Skoda Rapid is available in your budget but its a bit old now & needs an update
Compare Honda City vs Maruti Suzuki Ciaz vs Hyundai Verna vs Skoda Rapid - CarWal
The above prices are ex-showroom price. On road price will be 2-3 lakhs more
Skoda Octavia petrol base model costs 16.5 lakhs, its on road price will be about 21 lakhs
If you commute a lot, buying a diesel makes sense.... Otherwise buy petrol one