My ex employer didnt cut TDS (2022-23 )

Hey guys ,

I changed job in Oct 2022 , as i am a fresher and didn’t have knowledge - i didn’t check my payslips thoroughly and realizing just now that they didn’t cut tds from Oct - March . What will be the steps i have to do now in my ITR ? Is that illegal from my company ? Will it be a problem for me?

Ps - Although they have cut ₹5156 from April 2023 in the name of total income tax , as per the new guidelines.