Kargil was a limited war. How did it help? Your belief that you can force India to do something is silly, India is not about to hand over Kashmir to you. Period.
That execution of that limited war was undertaken halfheartedly and lacked support by people who commanded and took decisions for country (soldiers on the ground did their part bravely and more than what could have been expected of them), I am referring to more planned and well supported and executed one and times have changed since Kargil. Then and only then India will come to discussion table and take it more seriously.