Delve into the intricacies of electromagnetic induced resonances in Rb87 vapor through this informative conference talk. Explore the fundamental principles of precision measurements and quantum metrology as part of a comprehensive program organized by leading experts in the field. Gain insights into the theory of precision measurements, estimation techniques, and the applications of classical and quantum metrology. Discover how atomic and optical physics techniques are utilized for quantum metrology and precision measurements, with a focus on atoms, ions, molecules, photons, and NV-centers. Enhance your understanding of quantum physics and its practical applications in emerging quantum technologies, including quantum computers, sensors, and encryption tools. Suitable for advanced physics students, PhD candidates, and researchers, this talk contributes to building knowledge and awareness crucial for the National Quantum Mission in India.