कुमारा 1995 माइथायाव बिफान्निफ्राय आजिरा मोनदोंमोन। अब्लासिम, गुबुन-गुबुन कमितिफोराव बोसोन आरो सोद्रोमा जानायनि गेजेरजों भारतारि बिगियाननि बोहैथि दाहाराव बिथांनि मोनसे गोबां गोहोम दंमोन, जेराव बिथाङा रावखौबो गाहाय खालामालासै जुक्ति गोनां आरो बादायथावै नोजोरखौ गोख्रों खालामनाय गावनि सरासनस्रा नङै महरखौ लाबोदोंमोन।
Kumar retired from the department in 1995. By then, he had had a substantial influence on the course of Indian science through mentoring and membership in various committees, where he brought his unique style of forcing a logical and uncontestable point of view without running down anyone.