महासचिव मतलब [सं-पु.] - प्रधान सचिव; सबसे बड़ा सचिव; (जनरल सेक्रेटरी)। Also see Mahasachiv in English.
Here is meaning of Mahasachiv in hindi. Get definition and hindi meaning of Mahasachiv. What is Hindi definition and meaning of Mahasachiv ? (hindi matlab - arth kya hai?).