I retired as HOD of chemistry department from Modern School, Barakhamba Road. Its been 39 years I have teaching this subject. I have also been the Head Examiner for CBSE for 5 years for evaluation of theory pa pers and was also appointed as examiner for practical exams for different schools in Delhi. Presently taking up online classes for class XII and Class IX,X ( physics and chemistry). Contact for personalized, focused & individual attention towards the students with highly motivated approach + more - less