New Delhi:While the IPL followed the ICC Code of Conduct which would institute a 10 ODI or 5 Test ban, the BCCI has followed the 'regulations for players, team officials, managers, umpires and administrators' finalised at the working committee meeting on August 20th, 2000.
According to that rulebook, which is what Sudhir Nanavati was working with; Harbhajan has violated rules 14 and 16 of the 'additional regulations for players and team officials', which is clause 3.2.
Rule 14 states that a player, "shall not verbally abuse, assault, intimidate or attempt to assault or intimidate any umpire, spectator, match observer, player or team official."
Rule 16 states the player, "shall at all times observe and comply with the provisions of any regulations of the BCCI and the rules specified in this document which is in force from time to time.
The penalty for violating these rules:
a) A reprimand; and/or
b) A fine upto Rs 1 lakh; and/or
c) A ban upto a maximum of 5 ODIs and/or 3 Test matches.
Therefore, the BCCI has imposed the maximum ban as per its code of conduct and has also warned him that any further misconduct will result in a ban for life.