Bangladesh ask ICC to swap group with Ireland, relocate T20 WC matches to Sri Lanka
'While the ICC highlighted that the tournament itinerary has already been announced and requested the BCB to reconsider its stance, the Board's position remains unchanged.'
This will also be India's first T20 bilateral series in Bangladesh and first exclusive white-ball tour since 2014.
The Bangladesh senior cricket team will arrive in Pakistan on August 13 following the political unrest at home.
Gibson is more than familiar with cricket in Bangladesh
Shakib has already submitted a letter to the BCB asking for a sabbatical and the board has complied with his demand.
West Indies fast bowling great Courtney Walsh agreed to become Bangladesh's bowling coach and will begin his three-year role this week, the country's cricket board said on Thursday.
Cricket Australia (CA) is sending its own security expert to Bangladesh to determine whether or not it is safe for the Australian team to proceed with its planned tour.
Bangladesh promised enhanced security for the Pakistan cricket team during next month's Asia Cup, after political unrest in Dhaka endangered their participation in the regional event.