Mehrgarh is sometimes cited as the earliest known farming settlement in South Asia, based on archaeological excavations from 1974 (Jarrige et al). The earliest evidence of settlement dates from 7000 BC. It's also cited for the earliest evidence of pottery in South Asia. Archaeologists divide the occupation at the site into several periods.
Mehrgarh Period I 7000-5500 BC, was neolithic and aceramic (i.e., without the use of pottery). The earliest farming in the area was developed by semi-nomadic people using plants such as wheat and barley and animals such as sheep, goat and cattle. The settlement was established with simple mud buildings with four internal subdivisions. Numerous burials have been found, many with elaborate goods such as baskets, stone and bone tools, beads, bangles, pendants and occasionally animal sacrifices, with more goods left with burials of males. Ornaments of sea shell, limestone, turquoise, lapis lazuli, sandstone and polished copper have been found, along with simple figurines of women and animals.
Mehrgarh Period II 5500-4800 BC and Merhgarh Period III 4800-3500 BC were ceramic neolithic (i.e., pottery was now in use) and later chalcolithic. Much evidence of manufacturing activity has been found and more advanced techniques were used. Glazed faience beads were produced and terracotta figurines became more detailed. Figurines of females were decorated with paint and had diverse hairstyles and ornaments. The amount of burial goods decreased over time, becoming limited to ornaments and with more goods left with burials of females. The first button seals were produced from terracotta and bone and had geometric designs. Technologies included stone and copper drills, updraft kilns, large pit kilns and copper melting crucibles.
Mehrgarh Period IV to VI 3500-2800 BC
The city seems to have been largely abandoned around 2600 - 2000 BC, which is the time of the Indus Valley Civilisation.
It was reported in 2001 that the inhabitants of Mehrgarh may have practiced dentistry, with small holes found in the molar teeth from the remains of two men. It was suggested that the stone drills used to create beads could have been used (Andrea Cucina, University of Missouri-Columbia).
Balochistan Hills - http://bosei.cc.u-tokai.ac.jp/~indus/english/1_1_01.html
Early Developments of Art, Symbol and Technology in the Indus Valley Tradition - http://www.harappa.com/indus3/e1.html
Prehistoric dentistry evidence found - http://news.bbc.co.uk/hi/english/health/newsid_1272000/1272010.stm