Lalthara, (b 1953) is Mizo IAS officer of 1975 batch (Nagaland cadre). After 38 years of service in the IAS, he retired as Chief Secretary of Nagaland in the end of the year 2012; after which he served as Sr Principal Secretary-cum-Adviser to 3 consecutive Chief Ministers of Nagaland for almost 5 years. Lalthara, hailing from Reiek village in Mizoram, belongs to a rural family. He is an environment enthusiast and nature lover. He is deeply concerned about the destruction of the earth’s ecology by man in our blind pursuit of what we see as civilization and development. He believes that the best way to deal with the hosts of environmental and health issues being faced by the world today, including global warming and lifestyle diseases is to respect nature and its laws, and to adjust our lifestyle and our diet in sync with nature, or the scheme of creation. This line of his thinking is the origin and the foundation of his ‘milk theory’ as well.