Supriyo Bandyopadhyay

Supriyo Bandyopadhyay / Quantelion

Precision · Integrity · Trust · Wealth

Quantelion Private Limited

CIN U62090WR2026PTC297590

A technology and advisory company for markets and business. Quantelion builds and runs AI-based trading systems, and delivers IT and ITES services, portfolio consulting, equity research, legal services and cost management consultancy.

FounderSupriyo Bandyopadhyay
Registered officeNew Town, Kolkata
Incorporated22 Oct 2026
PresenceIndia · USA
What we do

Seven lines of work

  1. IT and ITES services

    Software development, systems integration and IT-enabled back-office services, built the way a finance function needs them: auditable, documented and recoverable.

  2. AI-based trading strategies via Vision9Strategies

    Quantelion engineers and operates the trading engines behind RIMA and POTHI, the two Vision9Strategies algorithms on Nifty options: RIMA on weekly option selling, POTHI on intraday option buying.

  3. Algo trading strategies

    Rule-based strategies on Indian index derivatives, backtested on years of five-minute spot and option data before they earn capital.

  4. Portfolio advisory and management

    Asset allocation, portfolio construction and ongoing oversight for individuals, promoters and family offices.

  5. Research advisory

    Market, sector and company research, and quantitative studies of strategy behaviour across volatility regimes.

  6. Legal advisory

    Contracts, compliance and commercial law support for businesses and investors.

  7. Cost audit and cost accounting services

    Statutory cost audit, cost records and management accounting that shows where margin is made and lost.

Presence

Where we work

India

  • Mumbai
  • Delhi
  • Kolkata
  • Chennai
  • Hyderabad

USA

  • New York
  • Florida
People

Directors

Supriyo BandyopadhyayFounder and DirectorFCA · ICWA · CPA (Colorado, USA)
Arka BandyopadhyayDirectorBA LLB
Contact

Get in touch

Company

info@quantelion.in
+91 98675 29811

Supriyo Bandyopadhyay

supriyo.b@quantelion.in

Arka Bandyopadhyay

arka@quantelion.in

Registered office

11 C, Tower 1, Rhythm, Sunrise Symphony,
Action Area II, New Town,
Kolkata, West Bengal 700157

Quantelion Private Limited · CIN U62090WR2026PTC297590 · Incorporated 22 October 2026 under the Companies Act, 2013