Hi Sahithi,
optiSLang is not included in Ansys Student, but Ansys optiSLang is included in the Academic Bundles:
https://www.ansys.com/content/dam/amp/2023/january/quick-request/academic-product-bundle-reference-table-4-11-23.pdf
You can check with your University/your Institute if they are available.
Or you can request a 30-day free tail here:
Engineering Simulation Software | Ansys Products
Best regards,
Markus