The six coaches have been appointed at a total cost of around $42,000 per month.
The centres would be reopened after a review of the situation in due course of time.
SAI also decided to allocate a one-time grant of Rs 6.87 lakh to the family of former Asian Games gold-medallist and Arjuna award winning late boxer Dingko Singh.
The contract of the 59-year-old German, a former world record holder, was valid until the end of the Tokyo Olympics.
Shaili won a silver at the Under-20 World Championships in Nairobi on Sunday.
Chanu walked out of the Indira Gandhi International Airport, flanked by security and clad in a face shield and mask.
Speaking at the virtual inauguration of the High-Performance Coach Education Programme, the national badminton coach highlighted the role of coaches in Indian sports.
Sports Minister Kiren Rijiju said the well-being of athletes, coaches and support staff are his ministry's priority and the decision is in line with that objective.
The 23-year-old has been starved of international competition since securing his Olympic qualification in South Africa early last year, which followed an entire 2019 lost because of an elbow injury.
"I believe my chances of making the cut for the Tokyo Olympics are not over yet," feels the Asian Games champion.