Introduction of HDD Machine related associations-The Indian Society for Trenchless Technology (IndSTT) was established in 1995 with the strong support of the Indian government and the Ministry of Urban Development. It is the organization with the highest autonomy to promote the use of trenchless technology in India. Over the years, Indian Society for Trenchless Technology (IndSTT) has supported the development of India ’s overall trenchless industry, making trenchless applications a major market, and also driving trenchless machinery such as HDD Machine Industry development. During this period, IndSTT also successfully guided many trenchless projects. For example, the last Indian Trenchless Technology Exhibition showed a large number of Trenchless equipment, issued a large number of technical publications and reference manuals, and at the same time, Indian national and international experts held seminars and workshops.