The design and development of the new Raman lidar of the Space Physics Laboratory, Vikram Sarabhai Space Centre is presented here. This station is located at 8°33'N, 77°E in India. This lidar can monitor atmospheric temperature (using Pure Rotational Raman Spectrum), aerosol extinction coefficient, water vapor profile and clouds. Advantages of Pure Rotational Raman method over Vibrational Raman method are presented with the result obtained using Vibrational Raman lidar. Optical layout of the lidar system, PRRS method and aerosol extinction measurements are described briefly.