The BCCI has confirmed the number of applications via a media release.
"At the close of the June 10, 2016, the timeline set for receiving applications for the position of the Head Coach of the Indian Cricket Team, BCCI has received a total of 57 applications from coaches within India and overseas," the release stated.
"The primary scrutiny of the applications received is now being carried out by the Office of the Honorary Secretary of the BCCI, with regards to the applicants, meeting the set eligibility criteria. After this initial scrutiny, the list of candidates who meet the criteria will be processed for further consideration," it further stated.
However, Shastri's group of support staff Bharat Arun, R Sridhar and Sanjay Bangar have not applied for the chief coach's post and probably will be waiting till BCCI comes up with the second set of recruitments on specialised coaches -- namely batting, bowling and fielding.