I Am From India. I Am 38 Years Male, My

I am from India. I am 38 Years Male, My problem is that my foreskin is fused / joint with each other on one side, other side is normal as shown in pictures. this has happened in previous 3 to 5 years, its not the case from childhhod but foreskin was bit tight when I was young. No pain, its not creating me any problem but I want my to make my foreskin normal like others. I want the Glans / Head of penis must come out of foreskin like others as of now it does not, please suggest me the correct solution about how to restore it.

Other
​undergone laparoscopic surgery previously some years back approx 6 yrs back for kidney stone and the devices to remove stone passed through penis opening