Map showing mid-oceanic ridge system of the Indian Ocean. Note Owen Fracture Zone stops short of the shire and its place taken by NW-SE Murray ridge. 

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... the Chaman Fault has been active and a major earthquake event M=7.6 along it in 1935 destroyed the entire city of Quetta and still active, occasionally causing severe earthquakes and the latest one in the year 2013 (Rehman et al., 2014). The en-echelon Ornach-Nal Fault exists about 50 km to the east and continues to the coast where like all other faults in the area takes a sharp turn to the west. Not a single fault continues to the end of the continental crust, which would have been inevitable if any of these faults formed the suture zone along which India moved from south to north. Had the Chaman Fault been really a suture, it would have been involved in a transcurrent movement atleast of the order of 1300 km and not merely 200 or 300 km (Crawford, 1979, p.107 A number of extrusions of ophiolites in the Chaman Fault region took place well away from the fault and lie entirely on the two opposite plates (Fig. 3). Gansser (1979) considered that the ophiolites were allocthonous, but it would appear vestige along the fault itself, some evidence of their former existence along the actual plate junction as well. Since no subduction/collision is believed to have taken place their presence require some explanation. In any case igneous activity does not seem to have any connection with the Chaman Fault. The tiny effusive obviously have come from the mantle like those in the Indus-Yarlung-Tsangpo belt or the hundreds of exposures over the entire Tibetan plateau, that have no connection with the sutures in the area. It is also similarly significant that movement along the Chaman- Ornach-Nal Faults does not even slightly displace the coastal area in the Baluchistan region. Had these faults been the junction of the Indian and Asian plates, the 300 km movement in southern Afghanistan would certainly have displaced by a like amount the coasts on the eastern side of the junction believed to be along the Ornach-Nal Fault. However, as pointed out above this fault does not cut across the crustal block and could not, in any case, constitute the junction of the two plates. The northward movement of the Indian plate, its progressive underthrusting below the Tibetan plate and the shortening in the Himalayan region are about 2500 km or more, and this could not but cause a major displacement of the two sides of the junction in the Baluchistan area. Yet nothing of this sort exists and the coast is as smooth as any other on the Earth. The most enigmatic part of the suture concept is the area between the northern end of the Chaman Fault, and the western end of the Indus-Yarlung-Tsangpo Suture Zone in Ladakh. A number of faults do occur in the area but none has been recognized as joining the westward extension of the IYTSZ with the Chaman Fault. But far more difficult to explain is that the Indian plate seemingly jumped laterally from Ornach-Nal fault to move along the en-echelon Chaman Fault, a distance of about 50 km, without leaving any trace of a junction in the between the two. And if this happen, what is the origin and character of the Chaman Fault south of this point? In the south, the Chaman Fault starts at the triple junction of the Arabian Plate, the Eurasian Plate and the Indo-Australia Plate,which is just off the Makran coast of Pakistan.The Fault tracks northeast across Baluchistan and then north- northeast into Afghanistan, runs just to the west of Kabul, and then northeast ward across the dextral Herat Fault, up to where it merges with the Pamir Fault system north of the 38 o parallel, but does not join the IYTSZ, which ends to the east of the Nanga Prabat-Haramosh massif (Sarwar and DeJong, 1979, Fig. 1) well away from the Chaman Fault and there is a clear gap between the two. South of the triple junction, where the fault zone lies under sea and extends southwest to approximate 10 o N 57 o E, it is known as Owen Fracture Zone. However, the Owen Fracture Zone is dextral as is also suggested by its displacement of the Mid-Indian Ocean Ridge near the mouth of Gulf of Aden. The Owen Fracture Zone, too, stop short of the shore, and its place is taken by the northwest- southeast Murray ridge (Fig. 6) which reaches almost to the coast, east of Karachi. Thus, an objective study of the feature leaves no doubt that on the west the Chaman-Ornach-Nal faults are not the junction of the two plates and on the east there is no feature that could be identified as the suture. This suggests that India had at no stage, broken off from the Asiatic continents to return to its original position along the sutures. This is not to speak of the scores of gulfs, deltas, marine erosion areas and other coastal features that ought to have developed on the opposite coasts in the course of about 250 Ma while India was roaming around as an independent sub-continent and would have obstructed the suturing. Instead, they seem to have disappeared to produce a smooth, straight suture in the west and the north, exactly at the original site on the coast that came into being in the ...