<br/>Olympian P.T. Usha will participate in this year's Republic Day parade in Delhi. She will be among the 10 sports persons participating in the parade. P.T. Usha told our Kozhikode correspondent that she got invitation from the General Secretary of Commonwealth Athletic Federation in this regard. Other sports persons participating in the parade include Rajya Vardhan Singh Rathode and K. Malleswari.