The trip has been sanctioned under the Target Olympic Podium Scheme.
The camp was sanctioned under the government's Target Olympic Podium Scheme (TOPS).
A few wrestlers including Tokyo-bound Vinesh requested the WFI to allow their personal staff to accompany them in the camp.
A source close to the Haryana grappler said that she might write to the federation requesting it to allow her to join a few days later than October 10, the day all grapplers should report.
The only woman wrestler to have qualified for Tokyo Olympics, Vinesh said she would prefer to be in isolation for some time.
Pratap Sports School in Haryana’s Kharkhoda where star wrestler Vinesh Phogat was training under coach Om Prakash Dahiya has been closed for now as a precautionary measure.
Earlier, Vinesh had pulled out of the national wrestling camp, scheduled to begin on September 1 in Lucknow.
This is the second time since 2016 that four athletes have been finalised for the country's highest sporting honour.
The rescheduled national camp for Olympic weight category wrestlers is set to begin from September 1 in Lucknow (women) and Sonepat (men).
Vinesh has been consistent in the last three years, winning Asian Games gold in Jakarta.
Star wrestler Vinesh Phogat, who was training in Norway along with her personal coach Woller Akos, has been asked to cut short her trip and return to the country.
Japanese wrestlers hurt India as Vinesh and Sakshi settle for bronze and silver
While Vinesh defeated Thi Ly Kieu of Vietnam 10-0 in the 53kg bronze medal bout, Anshu got the better of Sevara Eshmuratova of Uzbekistan to finish on the podium.
Vinesh had lost twice to Mukaida in 2019 - at World Championship and Asian Championships - and the trend continued as the gritty Indian yet again struggled to break the strong defence of the Japanese.
Wrestler Vinesh Phogat and para-badminton player Manasi Joshi are the other nominees for the award, the winner of which will be announced on March 8.