Alike every time, this issue of किरIITH is also being dedicated to a thrust area of significant importance at IIT Hyderabad. We are glad to release six theme-based issues of किरIITH from COVID-19, AI, Healthcare, IITHinJapan, 5G & Next-Gen Tech to NanoTech. Following this precedence, किरIITH is back with yet another critical thrust area "Energy".