In 1996 Gadzhiyev graduated from the Institute of Management and Business in Makhachkala and then in 1998 completed a degree at the Faculty of Law of the Dagestan State University.

[7] In 2022, Denis Pushilin, head of the Donetsk People's Republic (DPR) publicly praised Magomed Gadzhiev for his «all-encompassing support and personal involvement in the fate of the Donbass region».

[8] From 2004 to 2019, during his term as a deputy of the State Duma of the 4th, 5th, 6th and 7th convocations, he co-authored 303 legislative initiatives and amendments to draft federal laws, including those concerning the annexation of Crimea.

In particular, American political scientist Jason Smart tweeted that «Magomed Gadzhiev should be under US and EU sanctions, and not live his luxurious life in Western countries, supporting the war in Ukraine».

[13][14][15] An investigative piece by the Romanian RBN media outlet reported that Magomed Gadzhiev made attempts to obtain European citizenship in exchange for providing information about Russian authorities and oligarchs.