Personally I have experienced this with my Suzuki Baleno. Stock tyres were 165/65/R13 I changed them to 185/65/R13 and it changed the car comfort a lot but it also damaged the suspension. I had to replace the suspension last year. Car is only 125k driven.
Now I have City and I feel like 175/65/R15 are fine. Max you should go is 185/65R15 otherwise you might damage your suspension.
But my cousin has been using 195/65/R15 for past 5 years on his City 1.3 MT and this car is doing fine and is giving 12kmpl in Lahore.