- H.H. Padhy , A.K. Padhy & C.S. Panda "Synthesis and Reaction of Some Fused Nitrogen Heterocycles"20th National Conference Of Indian Council Of Chemist, Mysore, India . Dec 22-24, 2001
- H.H.Padhy , A.K. Padhy & C.S. Panda "Synthesis and Reaction of Some condensed Pyridazine Derivatives" 4th National Symposium In Chemistry (Under CRSI , Bangalore), NCL, Pune, Feb 1-3, 2002
- Synthesis of unsymmetric disulfides: potential agaents against weapons of Mass Destruction.Arun K Padhy & H.H.Padhy 21st National Conference of Indian Council of Chemist, Jabalpur, India, 2002.
- Synthesis of some symmetric disulfides. Arun K Padhy & H.H.Padhy 16th Annual Conference of Orissa Chemical Society, Berhampur, 2002.
- Sulfur Compounds: Molecules of the past and future Arun K Padhy & H.H.Padhy 22nd Annual Conference of Indian Council of Chemists, Roorkee, India, 2003.
- Synthesis of Unsymmetric Disulfides Arun K Padhy & H.H.Padhy 5th National Symposium in Chemistry, CLRI, Chennai, India, 2003.
- Application of Inverse Electron Demand Diels-Alder Reaction: Synthesis of Heterocyclic Molecules of Biological Importance. Arun K Padhy & H.H.Padhy ICOB-4 & ISCNP-24, New Delhi, 2004.
- Disulfides: Challenges & Applications Arun K Padhy & H.H.Padhy CBISNF-04, New Delhi, 2004.
