Maintaining tense, agreement, and pronoun reference across clauses — IITM BS previous year questions

Maintaining tense, agreement, and pronoun reference across clauses is part of Editing Sentence Patterns, Week 2 in English 2. Prasnya files every IIT Madras BS previous year question from this subtopic here, each one with a worked explanation. Take the whole set as a timed mock and you get accuracy, pacing and per-question analysis back.