International and National Metrology: Evolution -- Quantum Redefinition of Mass: The State of the Art -- Optical Frequency Comb: A Novel Ruler of Light for Realization of SI Unit Meter -- Realization of Candela: Past, Present and Future -- Time and Frequency Metrology: An Introduction -- Precise time transfer techniques - Part I: Telephone, LWR and Network -- Precise Time and Frequency Transfer: Techniques -- Two Way Satellite Time and Frequency Transfer -- Certified Reference Materials (CRMs): An Introduction -- Bharatiya Nirdeshak Dravya for Antibiotics and Pesticide: Reference materials for food analysis -- Alloys as Certified Reference Materials (CRMs): Ferrous & Non-Ferrous in Global Perspectives - A Review -- CRMs: Ensuring the Quality of Cement and Building Materials for Civil Infrastructure -- Petroleum-Based Indian Reference Materials (BND): Production and Dissemination -- Industrial Metrology: Introduction -- Pressure and Its Measurement: An Introduction -- Artificial Intelligence Implementation and Obstacles in Industry 4.0 -- Additive Manufacturing Metrology: Challenges -- Soft Metrology: Concept and Challenges from Uncertainty Estimation -- Necessity of Anatomically Real Numerical Phantoms in Optical Metrology: A Study -- Microscopy Using Liquid Lenses for Industrial and Biological Applications -- Error analysis and uncertainty evaluation -- Antennas for mm-wave MIMO RADAR -- Design and Integration Challenges for Automotive Applications -- Environmental Metrology An introduction -- Measurements of Indoor Air Quality: Science and Applications -- Advancements in Measuring Cognition Using EEG and fNIRS A Survey -- Sanctity of Calibrations: Vital for the Export of Indian Products Vital for the Export of Indian Products -- Advanced Techniques in Evaluation of Measurement Uncertainty: A Prelude -- Evaluation and Analysis of Measurement Uncertainty: Methodologies, Implications and Future Prospects -- Application of Contemporary Techniques of Evaluation of Measurement Uncertainty in Pressure Transducer: A Case Study -- Redefined SI unit.