Unfortunately Mitsubishi Pajero SUV segment is not comparable with Toyota in terms of Reliability although there is no match of their comfort.
In 80s and 90s Pajero was considered as status symbol but they lost charm after Prado took their market place because of its ruggedness,reliability and simple engine mechanics
Based on my personal experience and feedback from seniors regarding pajero i must say one of the reason it was not successful because of its engine and Ac performance in hot summer,secondly our local mechanic never completely understood how to fix issues with its engine and most of them are being swapped with Toyota 1KZ series.
e.g 3.5 GDI engine was technically advanced with complex wiring.
I also wont recommend Toyota surf because in tht range u will get 20 years old vehicle.
Daihatsu terios 4x4 is wise option but its wont be less than 1.8 million.
Ideal choice for you would be Toyota Rush, If u can raise ur budget till 2.1 u might get slightly used BRV