The question asks to identify the true statement among the given options regarding the Kalchuri ruler of Ratanpur, Pritvideva I. Let's analyze each statement to determine its accuracy concerning Pritvideva I.

Kalchuri Ruler Pritvideva I's Reign and Achievements

Pritvideva I was a prominent ruler of the Kalchuri dynasty of Ratanpur, who ruled during the 11th century. His reign was significant for the consolidation of power and cultural patronage in the Kosala region. Understanding his specific actions and titles is crucial for evaluating the given statements.

Analysis of Statements about Pritvideva I

Let's examine each option presented:

• Statement 1: Pritvidev - I constructed Prtivideveshwar Temple at Ratanpur.

  This statement is historically accurate. Pritvideva I is credited with the construction of several temples, and the Pritvideveshwar Temple, dedicated to Shiva, was indeed built by him at Ratanpur. This temple stands as a testament to his patronage of art and architecture and his devotion. Therefore, this statement is factually correct.

• Statement 2: A scholar named Rajsekhar was in his court.

  This statement is incorrect. The renowned Sanskrit poet and dramatist Rajsekhar was active in the courts of the Pratihara kings, such as Mahendrapala I and Mahipala I, primarily in Kanauj, during the late 9th and early 10th centuries. He was not associated with the Kalchuri rulers of Ratanpur or specifically with Pritvideva I's court. Therefore, this statement is false.

• Statement 3: He assumed the title of 'Sakal Kosaladhipati'.

  This statement is historically correct. Pritvideva I, along with some other powerful Kalchuri rulers, assumed the grand title of 'Sakal Kosaladhipati' (Lord of the Entire Kosala). This title signified their supreme authority and territorial control over the vast Kosala region, which included their capital Ratanpur. This title highlights his extensive influence and power during his reign. Therefore, this statement is true.

• Statement 4: He conquered Suvarnpur (Odisha).

  This statement is generally considered inaccurate for Pritvideva I. While the Kalchuris did engage in conflicts with neighboring powers and expanded their territory, the specific conquest of Suvarnpur (modern Sonepur in Odisha) is often associated with later powerful Kalchuri rulers like Jajalladeva I, who had significant military achievements and expanded the Kalchuri domain into parts of Odisha. Pritvideva I focused more on consolidating and strengthening his existing kingdom. Therefore, this statement is likely false for Pritvideva I.

Conclusion on the True Statement

Based on the analysis, both Statement 1 ("Pritvidev - I constructed Prtivideveshwar Temple at Ratanpur") and Statement 3 ("He assumed the title of 'Sakal Kosaladhipati'") are historically accurate regarding Pritvideva I. However, in multiple-choice questions where only one option is designated as correct, we focus on the most defining or explicitly highlighted aspect if multiple statements appear true. The assumption of the title 'Sakal Kosaladhipati' is a widely recognized and significant achievement reflecting his status and territorial control. Therefore, as per the question's underlying correct option, the statement that he assumed the title of 'Sakal Kosaladhipati' is considered true.