A novel approach towards selective bulk synthesis of delaminated graphenes in an electric arc Soumen Karmakar 1 , Naveen V Kulkarni 1 , Ashok B Nawale 1 , Niranjan P Lalla 2 , Ratikant Mishra 3 , V G Sathe 2 , S V Bhoraskar 1, 5 and A K Das 4 1 Department of Physics, University of Pune, Pune 411007, India 2 UGC-DAE Consortium for Scientific Research, University Campus, Khandwa Road, Indore 452017, India 3 Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India 4 Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India 5 Author to whom any correspondence should be addressed E-mail: svb@physics.unipune.ernet.in