Dr. Jaiprakash Duble is an open water swimming coach from India who has coached his son Jayant Jaiprakash Duble of the Dolphin Swimming Club, Nagpur. The son has competed in the 81 km India National Open Water Swimming Competition in River Bhagirathi, the 36 km All India Swimming Marathon, completed 24 km and 27 km crossings in the Arabian Sea, and a 29