42nd B.P.S.C. (Pre) 1997-98
Someshwar range of Bihar is-
aOlder than Parasnath mountain series
bOlder than Rajmahal mountain series
cOlder than Kharagpur mountain series
dYounger than all of these✓ Correct
Explanation
The Sumeshwar (Someshwar) Range of Bihar and the Shivalik Range were formed mainly during the Pleistocene period. Therefore, it is younger than all the three hills mentioned above.
indian-history