HDVSL  HDVSL stands for high definition video capability over subscriber link. HDVSL is an Indian standard built around a network operating system. The standard has been specifically developed to address the need for a high bandwidth low power terminal like a LCD screen. The Technology Development Board of the Government of India conferred the National Technology Day Award on 11 May 2008 on the inventor for developing and commercialising the HDVSL standard - marking the first official recognition of the Indian Government to the new standard for interactive video. The standard uses ITU's G.HN standard for local backhaul inside the premises and then merges with the fibre optic based IP network. The HDVSL technology stack is very similar to the Chinese 3G standard, but far more spectrum efficient with a scalable path to 10 Gbit/s+ speeds in a wireless terminal. The HDVSL operating system interfaces with terminal level stacks such as android, iOS and Windows. The standard was initially deployed over wired DSL networks in 2007-08. At that point, the network topology consisted of a HDVSL Dslam at the switch end and a HDVSL modem at the home end. The current version 2013 is a significant and quantum improvement over the 2007 version in terms of spectrum efficiency, terminal power requirements and its ability to handle uncompressed video flawlessly. India has only around 2.5 million DSL subscribers, 80% of which are on the ADSL2+ standard. Indian DSL penetration has been limited by the absence of personal computers in Indian homes. Only an estimated 3 million of the 200 million Indian homes own a computer. Most government plans to increase PC penetration in recent years have failed. Reasons for failure include the cost of a PC, language, computer illiteracy etc. In contrast, India has close to 900 million mobile subscribers, an increasing number of which aspire to own a smartphone. Migrating a DSL+ level of IP data service to a mobile phone is highly challenging. Some parts of India have population densities in excess of 250,000 people per square kilometer. Coupled with the fact that most of these people live in reinforced cement concrete houses - radio propation and coverage are difficult to overcome challenges. HDVSL is an Indian DSL standard, which successfully addresses this problem. The HDVSL standard operates a 36 Mbit/s duplex Ethernet link - and the HDVSL modem has a direct connection to a display, eliminating the need for a client-side processor altogether. As a result, client side processor based systems such as android, ios and windows can coexist with HDVSL.