1.            Operators whose ascent is 0 or 1 (with P.B. Ramanujan), Proc. Amer. Math. Soc. 29 (1971 ), 557- 560.

2.            On generalized Commutators, Rev. Roum. Math. Pures Appl.17 (1972), 1237 -1239.

3.            On commutators of operator, Rev. Roum. Math. Pures. Appl. 17 (1972), 1240- 1242.

4.            Operators with left inverses similar to those of their adjoints, Proc. Amer. Math. Soc. 41 (1973), 127- 131.

5.            Operators with Powers essentially similar to those of their adjoints, 42 (1974), 243- 247.

6.            Conditions implying normality of spectraloid operators, Riv. Mat. Univ. Parma (4) 1 (1975), 39 - 43.

7.            On classes of non-hyponormal operators, Math. Nachr. 73 (1975), 147- 150.

8.            Operators satisfying certain growth conditions (with B.C. Gupta), Proc. Amer. Math. Soc. 53 (1975) 341-346.

9.            On Similarities of operators, Yokohama Math. J. XXIII (1975),85-90.

10.            Operators of ascent O or 1 (with P.B. Ramanujan), Rev. Roum. Math. Pures Appl. xx (1975), 83-87.

11.            On some classes of operators associated with operator radii of Holbrook, Yokohama Math. J. XXIV(1976), 117-123.

12.            A note on a class of operators, Math. Nachr. 78 (1976), 357-361.

13.            A note on spectraloid operators, Glasnik Mat. 11 (31) (1976), 319-324.

14.            On generalized numerical ranges, Pacific J. Math. 66 (1976), 235-241.

15.            K-paranormal operators, Indian J. Pure and Appl. Math. 7 (1976), 631-634.

16.            On joint spectrum joint numerical range and joint spectral sets (with P. Juneja), Glasnik Math., 12 (32) (1977), 315-321.

17.            Essentially normaloid and essentially spectraloid operators, Yokohama Math. J. XX (1978), 55-59.

18.            A class of non-hyponormal operators on Hilbert spaces, Rev. Mat. Univ. Parma. 4(4) (1978), 23-27.

19.            Factorization of quasi-hyponormal operators, Publ. De L'Institute Math., 24 (38) (1978), 121-123.

20.            Joint normaloidity of operators, Glasnik Mat. 15 (1980) 373- 376.

21.            On congruency of operators, Publ. De. L'Institute Math. 33 (1983),196-171.

22.            Joint norm (with A.B. Patel), Glasnik Mat. (40) (1985), 93-98.

23.            On extensions of Fuglede- Putnam theorem (with B.C. Gupta), Indian J. Pure Appl. Math., 19 (1) (1988), 55-58.

24.            A note on P-hyponormal Operators for 0<P <1, Integral Equations & Operator Theory, 21 (1995) 498-503

25.            On intertwining P-hyponormal Operators, Indian Journal of Mathematics, 38(3) (1996), 287-290

26.            Spectral Properties for P-hyponormal Operators with 0<P<1, Bull. Cal. Math. Soc. 91 (6) (1999), 463-468

27.            A note on quasi-isometries, Glasnik Matematicki, 35(55) (2000) 307-312

28.            A note on Partial 2- isometries. (Communicated)

29.            2-isometric operators. Glasnik Matematicki, 37(57) (2002) 141-145

30.            A note on quasi-isomatries-II Glasnik Matematicki, To appear