Sonowal said those who have qualified in disciplines like archery and shooting are already in North America -- in the same time zone -- so that they can acclimatise properly and don't face jet-lag.
"Events like Archery and Shooting needs better concentration and devoid of tension. Hence they are currently doing practice in the same time zone," he told PTI.
Sonowal also said that India will send its largest ever contingent -- about 110 sports persons -- to Rio Olympics.
"So far 91 athletes have qualified for Olympics in Rio. Some trials are yet to be held. We expect that around 110 athletes will participate in Olympics this time. This will be the largest ever Indian contingent to Olympics," he told PTI.
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Among those who qualified include 59 sportspersons, who will take part in individual events, and 32 hockey players -- both men and women.
The Minister said special assistance has been given to sporting talents for their training both in India and abroad.