The security incidents included website intrusions, phishing attacks, network probing, and the spread of malware.
"CERT-In has observed that there is significant increase in the number of cybersecurity incidents in the country", Minister of State for Communications and IT Sachin Pilot said in a written reply to the parliament quoted by GovernanceNow.com.
According to the National Crime Records Bureau, a total 966 cases of cybercrime were reported under the Information Technology Act in 2010, Pilot said. The data show that a total of 288, 420, and 966 cybercrime cases were registered under the IT Act during 2008, 2009, and 2010, respectively.
In response to a separate parliamentary query, Pilot said 1,193 people were arrested in the country in 2010 under the IT Act, according to GovernanceNow.com.
The offenses included tampering with computer source documents, hacking, obscenity, unauthorized attempt to access protected computer systems, breach of confidentiality, publishing false digital signature certificates, among others, he added.