"I am leaving the fund when it is in the worst shape it has been in over three decades of my service here. All this is the result of politicisation," Mozhin said in an interview.
The IMF has always been politicised, he added, because the fund's executive board is made up of representatives of the political leadership of member countries.
"But the degree of politicisation has varied greatly during my tenure here. Now, at the time of my resignation, it has reached an extreme level," Mozin also said.