Yes, there are relaxations in the age limit for candidates from reserved categories in the NABARD Grade A Exam. The age limit is relaxed as per the guidelines of the Government of India. The relaxations vary for different reserved categories. Below are the details of age relaxations for candidates from reserved categories in the NABARD Grade A Exam:

1. Scheduled Castes (SC) and Scheduled Tribes (ST):
- The upper age limit is relaxed by 5 years for SC and ST candidates.
- For example, if the maximum age limit is 30 years, SC and ST candidates can apply up to the age of 35 years.

2. Other Backward Classes (OBC):
- The upper age limit is relaxed by 3 years for OBC candidates.
- For example, if the maximum age limit is 30 years, OBC candidates can apply up to the age of 33 years.

3. Persons with Benchmark Disabilities (PWD):
- The upper age limit is relaxed by 10 years for PWD candidates.
- In addition to the age relaxation, PWD candidates are also eligible for other relaxation benefits like reservation of vacancies and relaxation in qualification criteria.

4. Ex-Servicemen:
- The upper age limit is relaxed based on the length of military service rendered by the candidate.
- The relaxation is calculated as the actual period of service (in years) plus 3 years.
- For example, if a candidate has served in the military for 5 years, the upper age limit will be relaxed by 8 years.

It is important to note that these age relaxations are applicable only for candidates who belong to the respective reserved categories and can provide valid proof of their category during the application process. The relaxations are provided to ensure equal opportunities for candidates from reserved categories and promote diversity in the selection process.