Step 1: Background. The Cabinet Committee on Economic Affairs had earlier set different FDI caps for various sectors.
Step 2: Broadcast sector cap. In the broadcast sector, the limit was revised to 49\%. This was considered an optimal balance between inviting foreign capital and safeguarding national interest.
Step 3: Conclude. Thus, the correct answer is 49 per cent.
\[
\boxed{49\%}
\]