Textbook in PDF format The basic principle in writing of this CSIR-NET-GATE book is to create a guiding text for students- a text which represents the material in a way that encourages the students for the logical thinking about what they have learned theoretically in their bachelors / masters. At present in India, the national level competitive examinations such as CSIR-NET-JRF, UGC-SLET (SET), IIT-JAM, TIFR, IISc, BARC, ONGC and DRDO exams are of great importance to start advance career after basic graduation/ post graduation studies. Atomic structure and Quantum Chemistry Valence shell electron pair repulsion theory (VSEPR) Molecular orbital theory of diatomic molecules s and p-block elements Transition/Inner-transition Elements Bio-inorganic Term Symbol and electronic spectroscopy Organo−metallic Chemistry & catalysis Borane, Silicates, Isolobal fragments, Cages & Metal Clusters Inorganic Reaction Mechanism Point group/Symmetry element Solid state Molecular Spectroscopy Aromaticity Organic Reaction Mechanism Stereochemistry Organic spectroscopy Pericyclic reactions Photochemistry Heterocyclic Chemistry