In a continuation of our earlier reports on new developments in green synthetic approaches in organophosphorus chemistry,¹  the present chapter aims to offer an update on recent key developments in this spectacular field reported in 2020. The topic of green and sustainable chemistry has now attained considerable growth. It has become increasingly popular among researchers working in all branches of chemical science. Dedicated research endeavours have resulted in innumerable green products and processes so far, and such well-documented advances in the fields of green chemistry and green engineering have framed a solid platform for further exploration!²  During the...