In 2015, during a match against Bangladesh in Mirpur, Virat Kohli had to become Team India’s wicket keeper for an over. This change took place because then-captain MS Dhoni had to leave the field because of nature’s call.
Due to nature’s call, Dhoni had to take an over’s break to relieve himself. For that one over, Dhoni handed over his captaincy and wicket-keeping responsibility to Virat Kohli. Kohli was seen standing behind the stumps during the 44th over.
Kohli had a tough time keeping the wickets as it was the medium pacer, Umesh Yadav, who was bowling in that over. Kohli was seen standing at a safe distance, without the keeper’s gloves. He collected the fifth delivery which just missed the outside edge of Mashrafe Mortaza. Dhoni returned to his post in the 45th over, and Kohli happily returned to his fielding position.
This unintentional move by Dhoni and Kohli distracted the Bangladeshi batsmen as well. Bangladeshi batsman, Shakib Al Hasan got out in that over after getting caught by Ravindra Jadeja at backward point.
Though there are no explicit rules for toilet breaks given by ICC or BCCI but, the MCC (Marleybone Cricket Club) law states: “A substitute fielder shall not be allowed for comfort breaks, or for when a fielder leaves the field to go to the toilet.”
Legendary British umpire, Dickie Bird, who once left the field due to the same reason said,
I don’t remember much about the incident, but I think the bowler was Ian Botham. I spoke to him and went off the ground for the toilet and returned soon running down with my hand on pant zip.
Looks like Dhoni always had faith in Kohli and that’s the reason why he has completely handed over his reign to Kohli after stepping down.