Step 1: Section reference.
As per the Indian Companies Act, 2013, issue of shares at a premium and its treatment is governed under Section 52.
Step 2: Use of securities premium.
Securities Premium Account can be used for:
- Issuing fully paid bonus shares,
- Writing off preliminary expenses,
- Writing off premium on redemption of debentures,
- Providing for buy-back of shares, etc.
Step 3: Conclude.
Therefore, issue of shares at premium is dealt under Section 52.
Final Answer:
\[
\boxed{\text{Section 52}}
\]