Mehran Shock behaviour too un-orthodox

[waqar19]

Remove one belt from '' kamani ''.
And put brand new yokohama tires.
Currently you are using "snow tires". really hard and tough

[arshi11]

Hi all. first of all plz dont ignore it as a many-times-asked-before-question. And try to help me as i m in a fix. i got 2006 (2nd hand) mehran. Tyres are new yokohama. Initially vehicle was raised a bit from rear. i lowered it and thought it would fix the problem. but it didn't. the problem is...my drive is too bumpy. Even a 2 inch indulating road would throw me in air. i know people here spank mehran owners for not having the right to open our mouth for comfort BUT people...i get it checked by mehran owners too...its un-usually bumpy. Tell me what can i do to smoothen it a little bit (plz dont suggest me to buy honda civic prosmetic, mercedez c-180 etc etc, come up with a mature answer)

Thanks.

What is the shape of rear kamanis straight or convex? mine is straight?