Introduction:
The land grants made to officers for their military and administrative services can be traced directly from the epigraphic records of the Post-Gupta period. These records provide valuable insights into the land grants and the reasons behind their allocation to officers.

Explanation:
1. Epigraphic records:
- Epigraphic records refer to inscriptions found on stone, copper plates, and other materials that provide historical information.
- These records contain valuable information about the land grants made to officers during different periods of Indian history.

2. Land grants:
- Land grants were a common practice in ancient India, where rulers rewarded their officers and officials with land as a form of remuneration for their services.
- These land grants were typically given for military and administrative services rendered by the officers.

3. Post-Gupta period:
- The Post-Gupta period refers to the time after the decline of the Gupta Empire, which lasted from the 6th to the 8th century CE.
- During this period, several dynasties emerged and ruled over different regions of India.
- The epigraphic records of this period provide evidence of land grants made to officers for their military and administrative services.

4. Evidence in epigraphic records:
- The epigraphic records of the Post-Gupta period contain inscriptions that mention the land grants made to officers.
- These inscriptions often provide details about the officers, their services, and the land allocated to them.
- They serve as direct evidence of the practice of granting land to officers for their military and administrative contributions.

5. Importance of land grants:
- Land grants were a means for rulers to reward and retain loyal officers and officials.
- They helped in maintaining a stable administrative system and ensuring the loyalty of the military.
- Land grants also provided a source of income and sustenance for the officers and their families.

Conclusion:
The epigraphic records of the Post-Gupta period directly establish that land grants were made to officers for their military and administrative services. These records serve as valuable historical sources that shed light on the practice of granting land as a form of remuneration in ancient India.