Deputy Commissioner of Police (West) M N Anucheth said she was shot dead at her residence in Raj Rajeshwari Nagar.
Gauri Lankesh had ideological differences with right wing outfits.
Last year, she was convicted in a defamation case filed by MP Prahlad Joshi, who had objected to a report against BJP leaders.
Disclaimer: No Business Standard Journalist was involved in creation of this content