Journal Entries:
\[
\begin{array}{|l|c|c|}
\hline
\textbf{Particulars} & \textbf{Dr. Amount (Rs.)} & \textbf{Cr. Amount (Rs.)} \\
\hline
\textbf{Case (i):} & & \\
\text{Bank A/c Dr.} & 33,00,000 & \\
\text{To 10\% Debentures A/c} & & 30,00,000 \\
\text{To Securities Premium A/c} & & 3,00,000 \\
\hline
\textbf{Case (ii):} & & \\
\text{Bank A/c Dr.} & 4,60,000 & \\
\text{Loss on Redemption A/c Dr.} & 40,000 & \\
\text{To 10\% Debentures A/c} & & 4,00,000 \\
\text{To Securities Premium A/c} & & 60,000 \\
\hline
\textbf{Case (iii):} & & \\
\text{Bank A/c Dr.} & 4,75,000 & \\
\text{Discount on Issue A/c Dr.} & 25,000 & \\
\text{Loss on Redemption A/c Dr.} & 50,000 & \\
\text{To 10\% Debentures A/c} & & 5,00,000 \\
\text{To Securities Premium A/c} & & 50,000 \\
\hline
\end{array}
\]