Choose the address that is the same as the one given below. Bungalow 9, Marine Drive,Mumbai,Maharashtra - 400020

Correct — C.
Rule: find the part that differs across the options, then check it against the original.

Bungalow 9, Marine Drive, Mumbai and Maharashtra match in all four options.
The PIN is what changes. The original reads 400020.

Option (c) alone keeps 400020 → option (c).

Why the others are wrong

• (a)
  Bungalow 9, Marine Drive, Mumbai, Maharashtra - 401020 — 401020 has 1 as its third digit where the original has 0. Everything before the PIN matches, so a digit-by-digit read is what catches it.
• (b)
  Bungalow 9, Marine Drive, Mumbai, Maharashtra - 400012 — 400012 ends in 12, not 20. The first four digits match, which makes the changed ending easy to skim past.
• (d)
  Bungalow 9, Marine Drive, Mumbai, Maharashtra - 400021 — 400021 differs from 400020 in the last digit, 1 for 0. A change at the very end is easy to miss, so read the PIN to its last digit.

Address matching is a proof-reading task. Split the original at its commas and compare each part with the same part of every option, dropping an option at its first mismatch.

Here the house, road, city and state are identical in all four options, so the item turns on the six-digit PIN. Compare it digit by digit, left to right: 4-0-0-0-2-0.

Key facts

• An Indian PIN code has six digits.
• A part that matches in all four options cannot decide the answer.
• Mumbai is the capital of Maharashtra.

Common traps

• Checking the first few digits of the PIN and assuming the rest
• Treating the missing spaces after commas in the original as the difference to hunt for

No directly related past PYQ was found.