K. S. Chaddha (Kalpit Chaddha) is an author, educator, and the founder of Vayu Ink (vayuink.in), an independent publishing platform dedicated to making knowledge clear, accessible, and actionable.

A Commerce graduate (B.Com) with an academic background in Chartered Accountancy (ICAI) and computer applications, Kalpit combines technical expertise with a passion for simplifying complex ideas. His publications span CA Foundation accounting handbooks, business law guides, personal finance, digital content creation, and speculative fiction, including The Last Library of Tomorrow.

Driven by a commitment to lifelong learning and cultural preservation, Kalpit writes to bridge the gap between academic theory and real-world application. He is based in Lakhimpur Kheri, Uttar Pradesh.