Velocimetry portal is an online center for Laser Flow Diagnostics Techniques (PIV, StereoPIV, MicroPIV, NanoPIV, High speed PIV, PTV, LDV, PDPA, PLIF, ILIDS, PSP etc). This portal is being developed to provide as much information as possible about the Laser Flow Diagnostics Techniques in a consolidated manner. The portal includes Basic Principles, Applications, Discussion forums, Links to 'Links'. Continuous efforts are taken to put together all the present and possible applications of these techniques. The portal also provides a comprehensive collection of annotated links to information related to Laser Flow Diagnostics Techniques. Velocimetry portal hopes to become as the reference centre for all queries related to Laser Flow Diagnostic Techniques.