Q.Which of the following is NOT compulsory for every company since the Companies (Amendment) Act, 2015?

The Companies (Amendment) Act, 2015 made having a common seal optional, so it is no longer a compulsory feature for every company.

Check each option: separate legal entity, perpetual succession, and limited liability remain genuine essential features; only the common seal was changed to optional.

Separate legal entity, perpetual succession, and limited liability (for a company limited by shares) remain genuine, unchanged essential features of a company. The common seal, however, was made optional by the Companies (Amendment) Act, 2015 — a company may now authenticate documents through an authorised signatory's signature instead.

Option-by-option analysis:

• (a) Incorrect (as a distractor) — separate legal entity IS still a genuine essential feature.
• (b) Incorrect (as a distractor) — perpetual succession IS still a genuine essential feature.
• (c) Correct — the common seal is no longer compulsory since the 2015 Amendment.
• (d) Incorrect (as a distractor) — limited liability IS still a genuine essential feature for a company limited by shares.