The only difficulty is at the beginning of the series. If the chaitya cave was, as above stated, commenced 129 years before Christ, there ought to have been a vihara of the same age attached to it, but such does not seem to exist. There is indeed a small vihara close to it, and on a lower level than those now on each side of it, and consequently more likely to be what we are looking for, than they are. It is a simple square hall measuring 14 ft. each way, with two square cells in three of its sides, the fourth opening on a verandah with two octagon pillars in front. The only ornament of the interior is a horseshoe arch over each opening, connected with a simple Buddhist rail. In every detail it is in fact identical with the two old viharas Nos. 12 and 11 Ajunta, and certainly anterior to the Christian Era; but it bears an inscription of Krishna Raja, and he seems almost certainly to be the second of the Andrabritya race, and he ascended the throne B.C. 8, or 120 years after the time we are looking for.[180] But for this the architectural details would accord perfectly with those of the chaitya, and the age ascribed to it; but the inscriptions may have been added afterwards. If this is not so, the only suggestion that occurs to me is that, as originally executed, the chaitya had a forecourt, and that the cells were in this, as at Bedsa and Sana, but that having fallen away, from some flaw in the rock, was entirely removed, and at a subsequent time that on the right was added at a height of 6 ft. above the level of the floor of the chaitya, that on the left at 12 ft., about the same datum,[181] which could hardly have been the case if they were part of the original conception. Turning from these, which practically belong to the last chapter rather than to this, the interest is centred in three great viharas, the oldest of which bears the name of Nahapana (Woodcut No. 78), the second that of Gautamiputra, and the third that of Yadnya Sri--if my chronology is correct, their dates are thus fixed, in round numbers, as A.D. 100, 300, and 400. [Illustration: 78. Nahapana Vihara, Nassick. (From a Plan by Mr. Burgess.) Scale 50 ft. to 1 in.]