The carbon, oxygen, hydrogen and nitrogen are the key elements in aminoacids as all aminoacids contain amine (NH2) and carboxyl (COOH) as functional groups and R group for every specific aminoacid.
Tashkent Agreement was signed by India’s Prime Minister Lal Bahadur Shastri & Pakistan’s President Ayub Khan on 10 January in 1966 that resolved the Indo-Pak War of 1965. Shastri died in Tashkent, the day after signing the Tashkent Declaration.