Prof. Vajpayee has worked for over 25 years in the fields of investment banking and portfolio investment advisory. Besides his industry experience, he has more than 21 years of teaching experience at various MBA institutes such as IIMs, IIFT, MDI, IIT Delhi, IMI, etc. Prior to his association with IIT-Delhi as the visiting faculty, he has worked for companies such as SBI Capital Markets, Dabur Group, Onida group and India Infoline Group.
Prof. Vajpayee was awarded the outstanding teacher award at IIITD in 2016 and 2017. Also, he has conducted various management development programs (MDP) for numerous companies like ONGC, GAIL, Indian Oil, HDFC Bank, Standard Chartered Bank, DBS bank, etc.