Dipika Pallikal Karthik dethroned defending champion Joshna Chinappa to regain the women's title in the 73rd Senior National Squash Championship in Mumbai. The men's crown was captured by title holder and top seed Saurav Ghosal, who created history by winning it for the 11th time, defeating fourth seed Harinderpal Singh Sandhu in five hard-fought games.Ghosal beat Sandhu 11-7 7-11 3-11 11-8 14-12 after an 88-minute battle to go past RK Narpat Singh's feat of 10 titles, won from 1946 to 1955. World no. 19 Dipika, who was playing in the nationals after a five-year gap when she won in 2011, made it to the tops once again by beating arch-rival Joshna 4-11 11-6 11-2 11-8 in 43 minutes.