M.Phil from Delhi University 

1. Ad-hoc lecturer in Kirorimal College from 31st July 2003 to18th Dec 2004.

2. Ad-hoc lecturer in MataSunderi College from 20th Jan 2005 to 23rd March 2005. 

3. Permanent lecturer in ARSD College from 16th July 2005 to till date. 

Operator Theory 

Analysis - 1, Algebra - 1, Linear Programming, Calculus Practical, Differential equation - 1 Practical, Differential Equation - 1.

Present a Paper entitled "Quasinormality of Elementary Operators" in the International Conference on Operator Theory and Related Areas held at the Department of Mathematics, Delhi University, during 9th Jan 2008 to 12th Jan 2008. 

1. Participated in the Instructional Workshops on Fractal Geometry and Non Linear Dynamical System, organized by Department of Mathematics, DU, during 4-10-2004 to 8-10-2004.

2. Participated in the International Conference on Operator Theory and Related Areas held at the Department of Mathematics, DU, during 9-1-2008 to 12-1-2008. 

3. Participated in the ICI Workshop for Capacity Building of Delhi University Staff, organized by ILLL, during 23-12-2009 to 28-12-2009. 

4. Participated in the National Meet on History of Mathematical Sciences held at Conference Centre, University of Delhi, during 07 - 01-2010 to 09-01-2010.

5. Participated in the National Conference on Mathematics Beyond Formulae and Theorems, organized by Department of Mathematics, Indraprastha College for Women, University of Delhi, during 22-02-2011 to 23-02-2011.