Non payment of leave encashment

Hi All I just received my Full and Final Settlement Letter from the company I resigned from and served the full notice period of 3 months. The settlement letter does not offer any Leave encashments. When I raised it to the HR, I got a lame response that it is at the discretion of the company to pay the leave encashments at the time of separation, and there are no statutory bindings on the company to pay the same I had worked in that organisation for more than 1.5 years and had about 12 earned leaves, which I was sure to encash at the time of my final settlement Can someone here please help me with this? I checked on Google and ChatGPT, and it states the mandate for the payment. However I am not sure under which section of the law it is covered to be able to claim the same Looking forward to your help Thanks