In response to the question of the interviewer about why Ashish wanted to be a computer programmer, he replied that he had always been interested in computers.
This is a Reported Speech question. The direct speech "I have always been interested in computers" shifts to reported speech: the pronoun "I" changes to "he," and the reporting verb "replied" introduces the statement. No tense change is needed here as the reporting verb is in past tense and the statement remains a general truth/fact — though "have always been" can stay or shift to "had always been" (both acceptable). The key skill tested is pronoun change and correct sentence structure.