Explanation:

- Allahabad Pillar: This pillar inscription, also known as the Prayag Prashasti, records the achievements of Samudra Gupta, a prominent Gupta emperor. It provides detailed accounts of his conquests and military exploits.

- Iron Pillar: Located in Delhi, this is renowned for its rust-resistant composition but is associated with Chandragupta II, not Samudra Gupta.

- Vijaya Stambha: Situated in Chittorgarh, it commemorates the victory of Rana Kumbha. It is unrelated to Samudra Gupta’s achievements.

- Sun Pillar: There's no notable pillar known specifically as the Sun Pillar associated with Samudra Gupta.

Your answer is right: Allahabad Pillar indeed chronicles Samudra Gupta's accomplishments.