The Corolla you'll get for 21 would be almost 10 years old and full of surprises.
Many chances of a Corolla being used as a rental car.
Almost new WagonR and Cultus would cost you somewhere around 25/27 lack rupees. If you are going for Almost new. And not as good as new 2017/2018 models.
If you are willing to spend around 27 or 28 lacks.
Find your self a 2020 or 2021 Yaris in around 28 lack rupees that would be a wiser decision.
All depends on your budget.