| Issue Date | Title | Author(s) |
| 1986 | Detection of an extremely active state of AM Canum Venaticorum | Kutty, K. R. N; Marar, T. M. K; Padmini, V. N; Seetha, S; Kasturirangan, K; Rao, U. R; Bhattacharyya, J. C; Mohin, S; Jayakumar, K |
| 2004-12 | Fiber-fed echelle spectrometer of the 2.34 meter Vainu Bappu Telescope | Kameswara Rao, N; Sriram, S; Gabriel, F; Prasad, B. R; Samson, J. P. A; Jayakumar, K; Srinivasan, R; Mahesh, P. K; Giridhar, S |
| 2005-09 | High Resolution Stellar Spectroscopy with VBT Echelle Spectrometer | Kameswara Rao, N; Sriram, S; Jayakumar, K; Gabriel, F |
| 1986 | Identification of emission bands in P/Halley | Bhattacharyya, J. C; Babu, G. S. D; Ghosh, K. K; Jayakumar, K; Appakutty, M |
| 2014-09 | A new three-band, two beam astronomical photo-polarimeter | Srinivasulu, G; Raveendran, A. V; Muneer, S; Mekkaden, M. V; Jayavel, N; Somashekar, M. R; Sagayanathan, K; Ramamoorthy, S; Rosario, M.; Jayakumar, K |
| 2001 | Observations of occulation of HIP 66446 by (423) Diotima on 2001 March 15 from India - Detection of a companion to the star | Vasundhara, R; Jayakumar, K; Velu, C; Appakutty, M; Paranjpye, A; Kulkarni, H; Nitsure, P; Prabhunne, M; Shah, K |
| 2010-10 | Orbital period modulation and spot activity in the RS CVn binary V711 Tauri | Muneer, S; Jayakumar, K; Rosario, M. J; Raveendran, A. V; Mekkaden, M. V |
| 1988-02 | Rapid simultaneous observations of Fe II and Balmer emission lines of X OPH | Ghosh, K. K; Jayakumar, K |
| 1982-08 | Recent photometry of HR 1099 (V711 Tau) | Mohin, S; Raveendran, A. V; Mekkaden, M. V; Jayakumar, K; Rosario, M. J |
| 2003 | Spectral Line Variations in the Ap Star HD 42536 | Babu, G. S. D; Jayakumar, K; Velu, C; Sujatha, S |
| 2011-02 | A spectroscopic study of the hybrid pulsator Gamma Pegasi | Pandey, C. P; Morel, T; Briquet, M; Jayakumar, K; Bisht, S; Sanwal, B. B |
| 2015 | A stellar photo-polarimeter | Raveendran, A. V; Srinivasulu, G; Muneer, S; Mekkaden, M. V; Jayavel, N; Somashekar, M. R; Sagayanathan, K; Ramamoorthy, S; Rosario, M. J; Jayakumar, K |
| 2014-12-11 | A study of K i 7699 Å and related shell lines during the recent eclipse of ϵ Aurigae | Muthumariappan, C; Parthasarathy, M; Leadbeater, R; Potravnov, I. S; Appakutty, M; Jayakumar, K |
| 2004-06 | Variation of the Si II features in the chemically peculiar star - HD 115735 | Sriraghavan, S. M; Jayakumar, K; Babu, G. S. D; Sujatha, S |
| 1987-07 | VRI photometry of LMC SN 1987A | Rangarajan, K. E; Jayakumar, K; Appakutty, M; Sheriff, H. D |
| 2012-08 | ɛ Aur in eclipse: Post-AGB primary and disk-shaped secondary | Muthumariappan, C; Parthasarathy, M; Jayakumar, K; Appakutty, M |
