For an extrinsic semiconductor if doping concentration is increases then.
(1) For N-type and P-type fermi level will increase if T > Tf (T = temp of semi-conductor, Tf = fermi Temp.)
(2) For N-type fermi level will increase and for P-type fermi level will decrease.
(3) For N-type fermi level will decrease and for P-type fermi level will increase.
(4) For N-type fermi level will decrease and for P-type fermi level will decrease.