Vaishali; Bihar Sadan, New Delhi; Mahabodhi Cultural centre in Bodhgaya; Development Management Institute, Bihta; High court Building; Housing Complex for legislators in Patna. He has also led his team to give some of the most architecturally beautiful buildings in Patna including Bihar Museum, Samrat Ashok Convention Kendra, Bapu auditorium of 5000 capacity and iconic sabhyata dwar, tallest statue of Mahatma Gandhi in Gandhi Maidan and state of the art Sardar Patel bhawan. Mr. Kumar has won several awards and felicitations for his contributions in governance which includes National e-Governance Award, South Asia Manthan Award and citation from Bihar State Information Commission for ‘Jankaari’ facilitation center (started in 2007) in Patna. This was considered major work in breaking monopoly of government offices and ushering in an era of increased transparency under 'Right to Information Act'. He won national CIDC award for designing signature projects and timely construction of Bihar Museum and Samrat Ashok Convention Kendra.