Aspiration rule - aspirated in stressed syllable onset; unaspirated after /s/ — IITM BS previous year questions

Aspiration rule - aspirated in stressed syllable onset; unaspirated after /s/ is part of Aspiration, Week 8 in English 1. 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.