Section 24(4)(b) in U.P. Contributory Provident Fund Insurance Pension Rules
(b)In the event of the pension not becoming payable under Clause (a) the pension may be granted-(i)to the father.(ii)failing the father to the mother;(iii)failing the father and mother both, to the eldest surviving brother below the age of 18 years;(iv)failing to the eldest surviving, unmarried sister;(v)failings (i) to (iv) above, to the eldest surviving wad owed sister; and(vi)failing (i) to (v) above, to the children of a pre-deceased son in the order it is payable to the children of the deceased employees under Clause (a] (iii) and (iv) above.