The following result is obtained by our Internet Research Algorithm:
Top 5 phones under ₹15000 -
1. Realme 6
2. Samsung Galaxy M30s
3. Realme XT
4. Motorola One Vision
5. Realme Narzo 10
6. Nokia 7.2 (Price fluctuate)
Many people recommend Poco X2 but we wouldn't recommend you as Xiaomi's phone create a large number of bugs for the apps in terms of both UI and performance.
Realme vs Redmi -
https://candider.com/question/redmi-vs-realme