2. Assistant Professor Govt. Polytechnic . Dumka ,Bihar Apr.1974 - March 1975
3. Lecturer Bihar College of Engineering (P.U.) March 1975 -March 1985
4. Research Assistant I.I.T. Kanpur July 1983 -May 1986
5 Associate Professor B.C.E.Patna March 1985 - March 1990
6. Assistant Professor University of Aden Sept. 1989 - August 1991
7. Professor Patna University April 1990 - Jan. 2004
8. Professor N.I.T. Patna Jan. 2004 -
Vikash Anand , M.M.Choudhary, UPFC in order to Enhance the Power System Reliability. International Journal of Modern Engineering Research (IJMER). Vol. 4(No. 8), August - 2014,PP. 68-75, ESCI -MML-6645-0408-0475.
Vikash Anand , M.M.Choudhary, Fault Analysis. in Simulated Two-Machine Power System. Vol. 10(No. 8), August - 2014,PP. 10-19, ANED - DDL : O6.067X/B1081019.
Bikash Chandra Sahana , M.M.Choudhary, P- Wave Onset Detection for Sensing Seismic Signal Using Bhattacharya Distance. Signal Processing : An International Journal (SPIJ). Vol. 3(No. 4), July - 2014,PP.114-117, ISSN - 1985-2339.
Bikash Chandra Sahana , M.M.Choudhary, Comparative Analysis of Performance of Earthquake. International Journal of Engineering Research and Technology (IJERT). Vol. 3(No. 6), June - 2014,PP. 218-221, ISSN : 2278-0181.
M.M.Choudhary , L.P.Singh, Generalized Mathematical Modelling of n-phase Power System. International Journal of Electric Machines and Power System. Vol. 10, November - 1085,PP. 367 -378, .
S.Bhattacharya , M.M.Choudhary, Design of Power System Stabilizer by Frequency Response State-Space methodand, International Conference on Intelligent Systemand Control (ISC). Coimbatore,7-8 Jan. - 2016, .
M.M.Choudhary , L.P.Singh , Operating - Point nalysis of a Six -Phase Synchronous machine, InternationalFederation of Automatic Control (IFAC). PP. A4.1-A4.7, Banglore,15-1December - 1986, .
M.M. Choudhary ,L.P.Singh, Transient-Stability Analysis of a Six - Phase (Multi-phase) Power System Network, Proceeding of All India Seminar on Multi-phase (High-Phase Order) System. PP. 150 -166, I.I.T.Kanpur,March 17-19 - 1989, .
M.M.Choudhary, L.P.Singh, Mathematical Modelling of a Six=phase(Multi-phase)Synchronous Machine for Transient Analysis of Multi-phase (High-phase order) System, Proceeding of All India Seminar on Multi-phase (High-phase order) System. PP.135-140, I.I.T.Kanpur,March 17-19 - 1989, .
M.M.Choudhary ,S.S,Prabhu, Design of Dynamic Excitation Controller for Wide Speed Range Operation of a SynchronousDrive, 4th National Power System Conference. B6.5.1 - B6.5.9, Varanasi,Jan. - 1986, .
Ramesh Kumar - Numerical Differential Protection of Power Transformer2009 ).
Bikash Chandra Sahana - Analysis of Seismic Signal Using Digital Signal Processing Techniques ( 2010 - Continue).
Vikash Anand - D - Facts : Theory ,Modelling and Applications ( 2016 - Continue).