Direction : Study the following information carefully and answer the questions…

Concept

In a designation + family + city puzzle, lock the rigid anchors first: a stated rank position converts directly to a designation (e.g. "only three are senior than X" fixes X as the 4th post), the junior-most person sits at the bottom of the ladder, and "only X and Y work in city Z" closes that city. Crucially, with "two generations and four married couples" you must decide WHICH couples are the parent generation and which are the children: a single in-law link (daughter-in-law, son-in-law) tells you a child of one couple married a child of another. Only after the family tree is fixed do you trace the asked relation to the actual person and read off that person's designation.

Fixing the family (two generations, four couples)

1. B is the spouse of D, and G is the daughter-in-law of B, so G married a son of B and D. The only son of B is, by the seniority clue, the 4th post = Manager; the only person who fits is A. So A = Manager and A is married to G.

2. H is the son-in-law of D, so H married a daughter of B and D. A's sibling (a daughter of B and D) is E, and E is the sister-in-law of G - consistent with E being A's sister. So H married E.

3. That leaves F and C as the SECOND parent couple (F is the spouse of C). Their children are the two people who married into the B-D family from outside: G (who married A) and H (who married E). So B-D and F-C are the two parent couples, and the children cross-marry: A-G and E-H.

4. Therefore the father of G is F (G is the daughter of the F-C couple, and F is the male parent).

Fixing the designations

1. Ladder, senior to junior: GM, AGM, CEO, Manager, Assistant Manager, PO, Clerk, Sub staff.

2. G is junior-most, so G = Sub staff. A = Manager (shown above). D is the immediate senior of A (Manager), so D = CEO.

3. Only C and H work in Hyderabad and each city needs equal males and females, so that pair is one male + one female. H is male (he married E), so C is female and F (spouse of C) is male.

4. Only PO and Sub staff work in Delhi. B is not in Pune and cannot be in Hyderabad (that city is exactly C and H), so B is in Delhi, forcing B = PO; Delhi then holds B (PO) and G (Sub staff). The remaining persons (A, D, E, F) sit in Pune, keeping the genders balanced.

5. Remaining ranks are GM, AGM, Assistant Manager, Clerk. The order "C senior than F senior than H" plus the balance clue - posts above the father-in-law of A equal posts below the sibling of A - pin it down: father-in-law of A is F and sibling of A is E, so (posts above F) = (posts below E). Testing the order C > F > H, this is satisfied only by C = GM, F = AGM, H = Assistant Manager, E = Clerk.

Result

The father of G is F, and F's designation is AGM. So the correct answer is AGM.

Cross-check (full grid)

Each city has equal males and females and at least two persons (Delhi 1+1, Pune 2+2, Hyderabad 1+1), no married couple shares a city, only PO and Sub staff sit in Delhi, and posts above F (one, GM) equal posts below E (one, Sub staff) - every clue holds.