Two works are mentioned: - (a) Tattvanirṇaya by Varadarāja, I 219a, where C: Bhr. 678 is the same as this Ms.; original text only, II 203b. (b) Tattvanirṇaya by Vāstya Varada, quoted in Nyāyasiddhāñjana p. 88-III 47a.

One Tattvanirṇayaṭikā referred to in Adhikaraṇasaṅgraha, Ind. Off. Cat. II, ii, p. 1486a, Ms. No. 8006, fol. 10b.