[3][4][5] The first recorded postal system in Bengal was established under Qutb ud-Din Aibak, founder of the Delhi Sultanate, in the 13th century.

[6] By 1296, Sultan Alauddin Khalji established a postal department called the Mahakama-i-Barid which was led by an officer titled Malik Barid-i-Mamalik.

[6] He introduced runners, writers called Munshis in every town in Bengal, and reformed the existing postal system.

[6] The postal system in Bengal was further developed by Sultan Muhammad bin Tughluq as seen by Arabian travel writer Ibn Battuta.

[6] Mughal Emperor Jahangir introduced pigeons to carry messages in the empire including Bengal.

[6] The system was managed by a three tier officer service with Mir Munshi on top, then Darogah-i-Dak Chowki, and the third level were Diwan-i-insha.

[6] The lowest ranked personnel were called harkara who aside from carrying messages also informed the local governor of important developments and news in his area.

[6] During Mughal rule the postal system carried different types of letters and orders of various importance.

[6] After the East India Company took over Bengal from the Mughal Empire they maintained a similar postal service.

[6] The company developed lines of communication through the postal network connecting important commercial cities in Bengal with each other such as Calcutta, Chittagong, Dhaka, Dinajpur, Murshidabad, Rajshahi, Rangpur, and Rajmahal.

[6] The business community in Bengal operated a private postal service system called the mahajani dak.

[6] Barisal, Chittagong, Dhaka, Khulna, Narayanganj, and Fenchuganj received their own steamer railway services.

[6] The postal service in East Bengal had a shortage of equipment and staff after the partition and was using overprinted British India stamps.

[9] Biman Mullick designed the first eight stamps of Bangladesh during the war including one with a photo of Sheikh Mujibur Rahman.

[14] On 8 July 2015, ABM Humayun was appointed director general of Bangladesh Post Office.

This service has got wide acceptability and popularity within a short period of time, which can be regarded as a significant achievement of the present government.

[25] Nagad started its journey with demanding services like Cash-In, Cash-Out, Send Money, Mobile Recharge.

It also introduced a revolutionary Customer on-boarding feature- DKYC (Digital KYC) blending Bangla OCR, automated Identity verification and localized data that has minimized overall customer acquisition & life cycle time to one/tenth of market practice as well focusing on Paper-less environment.

[27] Dak Taka is a mobile banking service announced by the post office in December 2017.

[32] While shopping, they can make payments with their phone using NFC (near-field communication) or by scanning a QR code.

The ePost service enabled people to send and receive messages or scanned images through e-mail from selected Post offices in the country.