 Franco (1994), for instance, says ""Tattvopaplavasimha" is the only Lokayata text which has been discovered so far".This view is opposed by scholars including Karel Werner, Walter Ruben, K.K Dixit, Debiprasad Chattopadhyaya, M. K. Gangopadhyaya, A H Salunkhe, and Ramkrishna Bhattacharya.Werner (1995), for instance, is sceptical of the claim that "Tattvopaplavasimha" is a Cārvāka text.