Disinvestment of PSE's implies
(a) Sale of equity shares to private
(b) Closing down operations sector/public
(c) Investing in new areas
(d) Buying shares of PSE's
Disinvestment refers to the process of selling equity shares of a public sector enterprise to the private or the public sector. Through disinvestment, the ownership of the government in a PSE gets diluted, and simultaneously, the quantum of shares held by the private sector in that enterprise increases.
Hence, the correct answer is option (a).