Krishnagiri (கிருஷ்ணகிரி) is a district in northwestern Tamil Nadu, India, bordering Karnataka and Andhra Pradesh. Its headquarters is Krishnagiri town. Known for mango cultivation, rocky hills and historic forts, the district lies along important road corridors linking Bengaluru with other parts of southern India.
Tamil is the main language, while Telugu and Kannada reflect the district’s border connections. Agriculture, horticulture, granite-related activity and manufacturing support its economy. Hosur is a major industrial centre, with automotive and engineering businesses. Notable landmarks include Krishnagiri Fort, Krishnagiri Reservoir and the hill landscapes around Rayakottai. Local markets, festivals and food traditions connect rural communities with growing towns.
Common civic concerns include reliable drinking water, irrigation, road maintenance and access to public transport. Residents also care about employment, schools, healthcare and waste management. Industrial growth and expanding settlements bring attention to pollution, traffic and land use, while farming communities face concerns about rainfall, crop prices and human–elephant conflict in some areas.