Indian Market Specifics

Question 1

(a) Code [10]

def trade_cost(buy_val, sell_val, segment):
    seg = segment.lower()
    turnover = buy_val + sell_val
    if seg == "delivery":
        stt = 0.001 * buy_val + 0.001 * sell_val      # both legs
        stamp = 0.00015 * buy_val                      # buy only
        brokerage = 0.0
    elif seg == "intraday":
        stt = 0.00025 * sell_val                       # sell only
        stamp = 0.00003 * buy_val                      # buy only
        brokerage = min(0.0003 * buy_val, 20) + min(0.0003 * sell_val, 20)
    else:
        raise ValueError("segment must be delivery/intraday")
 
    exch = 0.0000297 * turnover                         # both legs
    sebi = 0.000001 * turnover                          # ₹10/crore
    gst  = 0.18 * (brokerage + exch + sebi)
 
    total = stt + stamp + brokerage + exch + sebi + gst
    return {"stt": round(stt,2), "stamp": round(stamp,2),
            "brokerage": round(brokerage,2), "exchange": round(exch,2),
            "sebi": round(sebi,2), "gst": round(gst,2),
            "total": round(total,2)}
 
# Trade A: buy 200*2450=490000, sell 200*2690=538000
print(trade_cost(490000, 538000, "delivery"))
# Trade B: buy 500*3800=1900000, sell 500*3845=1922500
print(trade_cost(1900000, 1922500, "intraday"))

Marks: correct STT logic per segment (2), stamp only on buy (1), brokerage cap logic (2), exchange+SEBI both legs (2), GST base excludes STT/stamp (2), correct invocation values (1).

Trade A values: buy $=490000$, sell $=538000$, turnover $=1028000$.

• STT $=0.001(490000+538000)=1028.00$
• Stamp $=0.00015\times490000=73.50$
• Exch $=0.0000297\times1028000=30.53$
• SEBI $=0.000001\times1028000=1.03$
• GST $=0.18(0+30.53+1.03)=5.68$
• Total $\approx ₹1138.74$

(b) Trade B hand computation [6]

Buy $=500\times3800=1{,}900{,}000$; Sell $=500\times3845=1{,}922{,}500$; Turnover $=3{,}822{,}500$.

(1 mark each row; brokerage cap correctly hit both legs earns the key insight.)

(c) Break-even derivation [6]

Let buy price $p$, quantity $q$, sell price $p(1+\Delta p)$. Turnover-scaling charges (fraction of turnover):

• STT (sell): rate $s=0.00025$ on sell turnover.
• Exchange $e=0.0000297$, SEBI $b=0.000001$ on both legs.
• Stamp $d=0.00003$ on buy only.
• Brokerage (ignoring cap): $k=0.0003$ per leg.
• GST $g=0.18$ applied on $(k\cdot\text{legs} + e\cdot\text{turnover} + b\cdot\text{turnover})$.

Gross P&L $=q p\,\Delta p$. Total costs (small $\Delta p$, approximate both legs' turnover $\approx qp$):

Break-even requires gross $\ge$ cost:

Numerically: $s=0.00025,\ d=0.00003,\ 2k(1+g)=2(0.0003)(1.18)=0.000708,\ 2(e+b)(1.18)=2(0.0000307)(1.18)=0.0000724$. Sum $\approx 0.00106 \approx 0.106\%$. (Fixed vs scaling: all listed scale with turnover; brokerage becomes fixed once cap binds, which is why large tickets break even on smaller moves.)

Marks: identify scaling charges (2), correct GST placement (2), assembled inequality (2).

Question 2

(a) Grandfathering rule + proof [7]

Algorithm for cost of acquisition $A$ (Sec 55(2)(ac)):

1. Let $F' = \min(F, S)$ — FMV capped at sale price.
2. Then $A = \max(C, F')$. Taxable LTCG $= S - A$ (if $>0$).

Proof grandfathering never increases tax vs. actual cost: Gain under rule $=S-A=S-\max(C,\min(F,S))$. Since $\min(F,S)\ge$ nothing forces $A<C$: because $A=\max(C,F')\ge C$, we have $S-A\le S-C$. Hence taxable gain $\le \max(0,S-C)$. $\blacksquare$ Also, when $F>C$ (price rose before 31-Jan-18), $A\ge F'$ shelters the pre-2018 appreciation $\min(F,S)-C$, so gain $\le\max(0,S-F)$ whenever $S>F$. Thus the rule exempts gains accrued up to 31-Jan-2018.

Marks: correct 3-step $A$ (3), inequality $A\ge C\Rightarrow$ gain $\le S-C$ (2), grandfathering-exempts-pre-2018 argument (2).

(b) LTCG computation [7]

$C=950,\ F=1140,\ S=1560$, qty $=300$.

• $F'=\min(1140,1560)=1140$
• $A=\max(950,1140)=1140$ per share
• Gain/share $=1560-1140=420$
• Total LTCG $=300\times420=₹1{,}26{,}000$
• Exemption $₹1{,}25{,}000$ ⇒ taxable $=1{,}000$
• Tax $=12.5\%\times1000=₹125$ (plus cess $4\%$ ⇒ $₹130$).

Marks: correct $A=1140$ (2), gain $126000$ (2), apply exemption (2), tax $₹125$/$₹130$ (1). Holding $>12$ months on listed equity ⇒ LTCG confirmed.

(c) Dividend taxation [6]

Since FY 2020-21 dividends are taxed in the investor's hands at slab rate (DDT abolished). Dividend $=300\times18=₹5{,}400$; at $30\%$ (+cess) tax $=₹1{,}620$ (+cess $\approx ₹1685$). TDS $@10\%$ ($₹0$ here since $<₹5000$ threshold is borderline; $5400>5000$ so TDS $=₹540$ applies, adjustable).

Efficiency argument: Dividend income taxed at $30\%$ vs LTCG at $12.5\%$ (or STCG $20\%$). A dividend of $D$ costs $0.30D$ in tax while the share price typically drops $\approx D$ ex-date. If instead sold before record date, that value realises as capital gain taxed at $12.5\%$ (long-term) — far lower. Hence for a high-slab investor realising as LTCG is more tax-efficient than receiving the dividend, by roughly $(0.30-0.125)D=0.175\times5400\approx ₹945$ saved. (Ignoring transaction costs and market timing.)

Marks: slab-rate rule + abolition of DDT (2), tax $₹1620$ (2), quantitative efficiency comparison (2).

Question 3

(a) F&O turnover [6]

ICAI Guidance Note (current view): absolute profit method. Turnover = sum of absolute profits + sum of absolute losses. Premium on options sold is NOT separately added under the revised 2023 guidance (older method added it; state assumption).

Python: turnover = 4200000 + 3850000 → 8050000.

Marks: absolute-profit+absolute-loss method (3), value $₹80.5$ lakh (2), note premium excluded under revised guidance (1).

(b) Tax audit [6]

Sec 44AB thresholds (FY 2024-25):

• Standard: turnover $> ₹1$ crore.
• Enhanced $₹10$ crore limit if cash receipts and payments each $\le 5\%$ of totals (digital condition). F&O is fully digital, so $95\%$ rule satisfied ⇒ threshold $₹10$ crore applies.

Turnover $₹80.5$ lakh $<₹1$ crore $<₹10$ crore ⇒ no audit under 44AB on turnover. Caveat: If opting out of 44AD presumptive after previously using it, or if declaring profit $<6\%$ and total income exceeds basic exemption, 44AB(e) audit may apply. Here net profit $₹3.5$L on $₹80.5$L turnover $=4.35\%$ — below $6\%$, so if not using presumptive and income $>$ exemption, audit could be required under 44AB(e). Conclusion: no turnover-based audit; check the 44AD/44AB(e) low-profit clause.

Marks: ₹1cr & ₹10cr thresholds (2), 95% digital rule (2), correct conclusion with 44AB(e) caveat (2).

(c) Ban period vs circuit filter [6]

F&O ban (MWPL): A stock enters ban when aggregate open interest (OI) across all F&O contracts exceeds 95% of Market-Wide Position Limit (MWPL). During ban, traders may only reduce/close existing positions — no new positions increasing OI. Penalty for increasing OI in ban: exchange penalty (typically 1% of increased position value, min ₹5000–₹1,00,000). Stock exits ban when OI falls below 80% MWPL. (Trigger 3, permitted-positions 1.)

Circuit filter: a price band (e.g. ±5/10/20%) halting trading in the underlying when price moves too far in a session — unrelated to OI; it protects against price manipulation/panic. (1)

Why index F&O never bans: Indices (NIFTY/BANKNIFTY) have no single-issuer MWPL — position limits are set per-client/market but there is no company-level free-float constraint, so the MWPL-based ban mechanism (designed to prevent cornering a stock) does not apply. (1)

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  {"claim":"Trade B intraday total charges = 723.30",
   "code