DSSSB, which stands for Delhi Subordinate Services Selection Board, conducts the TGT/PGT/PRT exam to recruit teachers for various subjects in government schools in Delhi. The exam is held for various categories, and reservation is provided based on certain criteria. The categories eligible for reservation under the DSSSB TGT/PGT/PRT Exam are as follows:

1. General Category (UR):
- This category comprises candidates who do not fall under any reserved category. They compete for the unreserved or general seats.

2. Scheduled Caste (SC):
- Candidates belonging to the Scheduled Caste category are eligible for reservation benefits under this category. The reservation percentage may vary based on government rules and regulations.

3. Scheduled Tribe (ST):
- Scheduled Tribe candidates are eligible for reservation under this category. Similar to the SC category, the reservation percentage may vary based on government guidelines.

4. Other Backward Classes (OBC):
- OBC candidates are eligible for reservation benefits under this category. The OBC category is further divided into different sub-categories, such as OBC-NCL (Non-Creamy Layer) and OBC-CL (Creamy Layer). The reservation percentage may vary based on government rules.

5. Economically Weaker Section (EWS):
- This category was introduced recently to provide reservation benefits to candidates belonging to economically weaker sections of society. The reservation percentage for EWS candidates may vary according to government regulations.

6. Ex-Servicemen:
- Candidates who have served in the armed forces and have been discharged from service are eligible for reservation under the Ex-Servicemen category. They are provided certain relaxation in age and other eligibility criteria as per government rules.

7. Persons with Disabilities (PwD):
- This category includes candidates with various disabilities, such as visual impairment, hearing impairment, locomotor disability, etc. PwD candidates are eligible for reservation benefits, and certain relaxation in eligibility criteria is provided to them.

It is important to note that the reservation percentages for each category may vary from state to state and are subject to government regulations. Candidates applying for the DSSSB TGT/PGT/PRT Exam should carefully check the official notification for the specific reservation details applicable to their category.

By providing reservation to various categories, the DSSSB aims to ensure equal opportunities for candidates from different backgrounds and create a diverse and inclusive teaching workforce in government schools.