Samudragupta’s southern campaigns mentioned in the Allahabad Pillar inscription refer to his:

The correct answer is: b) Victories and acts of submission by southern kings.

The Allahabad Pillar inscription is a 14-line eulogy of Samudragupta, the third ruler of the Gupta Empire. It was written by Harishena, Samudragupta’s court poet, and is inscribed on a pillar in Allahabad, India.

The inscription describes Samudragupta’s military campaigns in the south, which resulted in the submission of many southern kings. It also mentions that Samudragupta sent envoys to the southern kingdoms, and that he received tribute from them.

The inscription is a valuable source of information about Samudragupta’s reign, and it provides evidence of his military prowess and diplomatic skills.

Here is a brief explanation of each option:

• Option a) is incorrect because Samudragupta did not conquer the entire Tamil region. The inscription states that he defeated the kings of the Tamil region, but it does not say that he conquered their territory.
• Option b) is the correct answer because the inscription describes Samudragupta’s victories over the southern kings and their acts of submission.
• Option c) is incorrect because the inscription does not mention any diplomatic relations between Samudragupta and the southern powers.
• Option d) is incorrect because the inscription states that Samudragupta was victorious in his campaigns in the south.