Step 1: Determine Charu's and Sirima's capitals based on the new profit-sharing ratio of 2:1. The firm's total capital is ₹6,30,000.
\[
\begin{array}{|l|r|l|r|}
\hline
\textbf{Particulars} & \textbf{Amount (₹)} & \textbf{Particulars} & \textbf{Amount (₹)} \\
\hline
\text{Charu's Capital} & \frac{2}{3} \times ₹6,30,000 = ₹4,20,000 & \text{Sirima's Capital} & \frac{1}{3} \times ₹6,30,000 = ₹2,10,000 \\
\hline
\end{array}
\]
Step 2: Reconcile the current capital balances of Charu and Sirima with their new required capitals.
Charu's current capital is ₹4,35,000, exceeding her required capital of ₹4,20,000 by ₹15,000. Consequently, Charu will withdraw ₹15,000.
Sirima's current capital is ₹1,89,000, which is ₹21,000 less than her required capital of ₹2,10,000. Therefore, Sirima will contribute ₹21,000.
\[
\begin{array}{|l|r|l|r|}
\hline
\textbf{Particulars} & \textbf{Amount (₹)} & \textbf{Particulars} & \textbf{Amount (₹)} \\
\hline
\text{Charu's Excess Capital} & ₹15,000 & \text{Sirima's Deficit Capital} & ₹21,000 \\
\hline
\end{array}
\]
Step 3: Record the necessary journal entries for the adjustments.
\[
\begin{array}{|l|l|r|r|}
\hline
\textbf{Date} & \textbf{Particulars} & \textbf{Debit (₹)} & \textbf{Credit (₹)} \\
\hline
31^{\text{st}} \text{March, 2023} & \text{Charu's Capital A/c Dr.} & 15,000 & -- \\
& \text{To Bank A/c} & -- & 15,000 \\
& \text{(Being the excess capital withdrawn by Charu)} & & \\
\hline
31^{\text{st}} \text{March, 2023} & \text{Bank A/c Dr.} & 21,000 & -- \\
& \text{To Sirima's Capital A/c} & -- & 21,000 \\
& \text{(Being the deficit capital brought in by Sirima)} & & \\
\hline
\end{array}
\]
Final Adjustment:
Charu will withdraw ₹15,000.
Sirima will contribute ₹21,000 to the firm.