1401. A 560 feet long tunnel was constructed beyond Sanjauli, on Hindustan Tibet road in ? a) 1851 b) 1858 c) 1867 d) 1901 1402.

1391. In which year Chamba, state was brought into direct relation with the Imperial Postal System(A.D)? a) 1887 b) 1885 c) 1883 d) 1881 1392.