Expert Curated

Best SIEM Tools for Indian Businesses in 2026

SIEM (Security Information and Event Management) collects and analyses security logs from all IT systems — detecting threats, meeting CERT-In compliance requirements, and providing incident investigation capability. Indian enterprises are increasingly mandating SIEM under CERT-In guidelines. We review the best options for Indian IT teams.

1. Microsoft Sentinel

Best cloud-native SIEM for Microsoft environments

Microsoft Sentinel is a cloud-native SIEM built on Azure — collects logs from Microsoft 365, Azure, on-premise servers, and third-party sources. AI-powered threat detection with 200+ data connectors. Deployed by leading Indian banks and enterprises.

Pros

Cons

Best for: Indian enterprises using Microsoft 365 and Azure wanting cloud SIEM without SIEM server management

2. ManageEngine Log360

Best SIEM for Indian mid-market IT teams

Log360 is ManageEngine's SIEM — very popular in India due to its affordable pricing, on-premise deployment, Active Directory focus, and India-based support. Used by Indian hospitals, universities, and mid-size enterprises.

Pros

Cons

Best for: Indian mid-market organisations (50–500 employees) wanting affordable on-premise SIEM with India support

3. Splunk Enterprise Security

Best SIEM for large Indian enterprises and SOCs

Splunk is the market-leading SIEM for large Indian enterprises and MSSPs running SOCs. Most powerful threat detection, largest app marketplace, and deepest forensic capability — used by India's largest banks and telecom operators.

Pros

Cons

Best for: Large Indian enterprises with 24/7 SOC teams and significant security operations budgets

4. Wazuh (Free/Open Source)

Best free SIEM for Indian startups and SMBs

Wazuh is a free, open-source SIEM + XDR platform — providing log collection, threat detection, vulnerability management, and compliance reporting. Installed on a Linux server in your data centre or on AWS.

Pros

Cons

Best for: Tech-savvy Indian startups and SMBs wanting enterprise SIEM features without licensing cost

5. Sophos MDR (as managed SIEM alternative)

Best SIEM alternative for SMBs without a security team

For Indian SMBs that cannot run their own SIEM, Sophos MDR provides 24/7 threat monitoring and response by Sophos security experts — effectively outsourcing SOC and SIEM to Sophos. No in-house SIEM needed.

Pros

Cons

Best for: Indian SMBs wanting SOC-level security monitoring without hiring a security team or managing SIEM

Frequently Asked Questions

Is SIEM required for CERT-In compliance in India?

CERT-In guidelines require organisations with ₹1 crore+ turnover to maintain security logs for a minimum of 180 days and report cyber incidents within 6 hours. SIEM automates log collection, retention, and incident alerting — making CERT-In compliance significantly easier. While SIEM is not explicitly mandated, it's the standard way to meet CERT-In log requirements.

What is the minimum SIEM setup for a 100-person Indian company?

For a 100-person Indian company, ManageEngine Log360 or Wazuh (free) are appropriate starting points. Collect logs from: Windows Active Directory, firewall (Sophos/Fortinet), email gateway, and endpoint agents. This covers the core CERT-In log requirements at ₹5–15 lakh/year total cost.

How many logs can a typical Indian office network generate per day?

A 100-person office generates approximately 1–5 GB of security logs daily from all sources (endpoints, servers, firewall, email, cloud apps). At Microsoft Sentinel pricing (~₹250/GB), this is ₹9,000–45,000/month. Log360 on-premise has no per-GB cost but requires server infrastructure.

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