The age lower limit for the SSC CHSL is 18 years as on 1st January of the appearing year. So if you wish to go for the SSC CHSL then you are eligible for the SSC CHSL 2024 because on the 1st January,2023 your age will be 17 years 5 months 16 days. So you are eligible for the SSC CHSL 2024 and onwards.
For more information regarding SSC CHSL eligibility criteria consider the link below:
I hope this helps. Wish you a great day!