The security work
that has to hold up
under audit.
Prime Infoserv is a specialist cybersecurity partner to enterprises, banks, and public bodies across India. With experienced cybersecurity professionals, ISO 9001:2015 and ISO 27001:2013 certifications, and 24×7 security operations, we help organizations strengthen security, manage risk, and meet their compliance requirements.
When a security requirement comes with a deadline, we help you move forward.
- I need to be DPDP-ready The Digital Personal Data Protection Act reaches every organisation holding personal data. The gap is usually consent, retention and breach notification, not encryption. DPDP compliance
- I need SOC 2 or ISO 27001 A customer's procurement team has asked for a report you do not have. Twelve to twenty weeks, and most of it is evidence rather than technology. ISO 27001 & SOC 2
- I need someone to run my SOC You have alerts and nobody to triage them at 02:00. Managed detection and response, staffed round the clock from Kolkata. Managed SOC / MDR
- I need a CISO, not a full-time hire Board reporting, policy, risk register and regulator correspondence, on a retainer sized to a mid-market balance sheet. vCISO
- Something is happening right now Suspected compromise, ransomware or data exposure in progress. The one route on this site that skips the form. Incident response
Why Prime
For 15 years, Prime Infoserv has helped organizations across key sectors manage cybersecurity risks and protect critical systems.
2010
Established July 2010. Fifteen years in the security space, not a pivot into it.
550+
National and international clients, across India and beyond.
24×7
Managed SOC and NOC, staffed continuously rather than on call.
1
Delivery locations — Kolkata
Six stages. Most clients arrive at one and stay for three.
- A risk register your board can read and your regulator will accept — not a maturity score with nobody's name against it.
- VAPT across web, mobile, network, cloud and application. Ranked by exploitability and consequence, with the retest included.
- ISO 27001, SOC 2, DPDP, GDPR, SEBI CSCRF. The control set is the easy half; the evidence trail is what audits fail on.
- Hardening and configuration work delivered by the people who wrote the finding, rather than handed to a separate team.
- Detection and response from a floor that does not close, with agreed escalation paths and named analysts.
- Containment, forensics and the regulatory notification clock. Reachable in minutes, not through a contact form.
A full-spectrum security capability, under one roof.
Advisory, assessment, compliance, protection, monitoring and response — six practices delivered by one team, so a finding is never handed to a stranger to close.
All six practices
Security Assessment & Testing
Find security weaknesses before attackers do. Prime Infoserv assesses your applications, networks, infrastructure, cloud environments, and security controls to identify vulnerabilities and help you fix them before they become incidents.
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Cybersecurity Advisory & GRC
<span style="color: rgb(110, 111, 113); font-family: Poppins, sans-serif; font-size: 16px; text-align: justify;">Our Governance, Risk and Compliance (GRC) Services are meticulously crafted to assist organizations in the establishment and continual maintenance of robust governance frameworks. Our comprehensive approach encompasses both technological advancements and procedural enhancements aimed at fortifying the organization’s network and application postures while ensuring strict adherence to global industry standards, legal requirements and regulatory compliances. Our GRC services offer a holistic approach to fortifying your organization’s data security posture.</span>
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vCISO / Cybersecurity Leadership
Prime Infoserv offers expert-led Virtual CISO Services in India and Kolkata, helping organizations strengthen cybersecurity governance, manage evolving cyber risks, and achieve regulatory compliance, without the overhead cost of a full-time Chief Information Security Officer.
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Compliance & Data Privacy
Build stronger compliance and protect the data your organization handles. Prime Infoserv helps organizations understand regulatory requirements, identify gaps, improve data governance, and put practical privacy and security controls in place
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Incident Response & Threat Management
<p>When a cyber incident occurs, every minute matters. Prime Infoserv helps organizations quickly detect, investigate, contain, and recover from threats while reducing business disruption. Our team provides structured incident response, threat analysis, digital forensics, recovery support, and post-incident guidance to help strengthen security and prevent repeat incidents.</p>
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Utilities, banks, public bodies and manufacturers.
Technology partnerships
Experienced People, Clear Leadership
You will meet the practitioner who writes your report.
The full team
Sushobhan Mukherjee
Co-Founder & CEO
25 years in IT consulting and cybersecurity
Sailen Sengupta
Co-Founder & COO
30 years in delivery and operations
Abhishek Rungta
Director
Founder & CEO, Indus Net Technologies
Raja Kabiraj
Lead, Cybersecurity Practice
11 years in cybersecurity
Let’s build a stronger, more resilient security posture.
Spend 30 minutes with a cybersecurity practitioner who understands the work, not just the sales pitch. Get clarity on what you actually need, where the gaps are, and what to do next—before time and budget are committed.
Prime updates
08 May 2026 · Haldia, West BengalEmerging Trends in AI and Cyber Security
– Mar 2026 · KolkataICC MSME Conference 2026
17 Feb 2026 · Almaty, KazakhstanISODA TechSummit — Vision. Velocity. Value.
31 Oct 2025 · KolkataCyber Security A–Z: From Awareness to Action
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