Question : Allahabad Pillar Inscription gives a detailed account of the reign of which of the following?

Answer :
Samudra gupta
Samudragupta court poet and minister Harisena composed the Allahabad pillar Inscription or Prayag Prasasti. The Pillar was an Asokan Pillar erected by Asoka six century before him.
This Inscription is a eulogy of Samudragupta and mentions about the conquests of Samudragupta and boundaries of the Gupta Empire. As per this inscription, Samudragupta defeated 9 kings in North, 12 Kings in South, reduced all the Atavika states to vassalage.