LDC stands for Lower Division Clerk, one of the main posts recruited through SSC CHSL.
LDCs handle clerical work like data entry, file maintenance and office correspondence in central government ministries.
The post needs a 12th pass qualification and is open to candidates meeting the CHSL age limits.
Selection includes the written exam, a typing test and document verification.
The full post details are given in the official SSC CHSL notification.