Delta Network System was founded in 1993, as a proprietary business firm owned by Engr. Rafel Kabir. The initial field of business was off-line Internet service & computer products. In September 1996 DNS formed a joint-ventured with BRAC, one of the leading Non-Government Organization (NGO) in Bangladesh, to establish BDMail Network Ltd, a pioneer Internet Service Provider (ISP). The current senior management of DNS ran the first three years of operation BRAC BDMail. <br/>Spreading her wings in the communication and IT sector, DNS expanded with the formation of BDTel Communications Ltd. in 1999, which is a subsidiary of DNS. As companies under DNS were growing, DNS Group was formed to create an umbrella, and create a synergy for all the companies operating under DNS in the IT sector. <br/>DNS Software was launched in the early 2000s and has grown into a prominent mobile contents provider with affiliation to all telecom operators within Bangladesh.