and would like to make sure it is a stater of King Kalasa (1054-1061), even though it was described as a stater of Queen Didda Rani. The writing on the obverse fits the Kalasa issue and not the Didda issue.
About halfway down the page there's a coin of Kalasa with an overlay of the writing, which also appears on your coin.
Coins of Hindu rulers of Kashmir are similar in general appearance and are often by default assigned to Didda Rani, the same way Chola coins are often by default assigned to Rajaraja Chola, though there are several rulers with similar coins.