Dr Shalini Shravan, with 21 years of teaching experience and 2+ years of research experience  likely possesses a wealth of knowledge and expertise in the field of Analog circuits, wireless communication, Wireless sensor network, and Signal Processing and Verilog-based system design. 

Currently she is working for R V Institute of technology and Management, Bengaluru. Over the course of her career, she has likely demonstrated a deep commitment to education, research, and the development of students.

Her extensive experience suggests that she has witnessed and adapted to the evolving landscape of engineering education and technology. Throughout her tenure, she has been involved in various academic activities such as curriculum development, research projects, and administrative responsibilities.

In her two decades of experience, madam is likely well-connected within the academic and professional communities, fostering collaborations, and contributing to advancements in her specific engineering discipline.

Furthermore, such a seasoned faculty is likely to have mentored and inspired numerous students, contributing significantly to the next generation of engineers. Her teaching methods may have evolved with the integration of new technologies, pedagogical approaches, and industry insights.

In summary, a professor with 21 years of experience in an engineering college is a seasoned professional who brings a combination of academic expertise, practical knowledge, and a deep understanding of the ever-changing landscape of engineering education.