| Kachari | This Tibeto-Burman language is spoken in the North Cachar Hills and Cachar districts of Assam. |
| Kachchi (Kutchchi, Katch) | This Indo-Aryan language is spoken nearly 8 lakh people in India in parts of Andhra Pradesh, Madhya Pradesh, Uttar Pradesh, Assam, Gujarat ( Kutch area); Kerala, Tamil Nadu, Maharashtra, Karnataka and Odisha. It is also spoken in Kenya, Tanzania and Malawi. Jadeji is the dialect of Kachchi. |
| Kadar | This is a Dravidian language similar to Malayalam and is spoken by some scheduled tribes in the Ernakulam, Palghat, and Trichur areas of Kerala; parts of Andhra Pradesh and Coimbatore district of Tamil Nadu. |
| Kaikadi | This is a Dravidian language spoken by the Kaikadi tribes in some parts of Maharashtra and Karnataka. |
| Kakborok (Tripuri, Tripura, Kokborok) | Kakborak is a Baric language belonging to the Tibeto-Burman language family. The phrase kok borok literally means “language people.” Kok Borok is the mother tongue of a majority of the tribes in Tripura, and it is the language used in primary schools. It is spoken by over 7 lakh people in India, mainly in Assam and eastern Tripura. It is also spoken in Bangladesh. Dialects: Jamatia, Noatia, Riang (Tipra), Halam and Debbarma. This language is also known as Usipi. |
| Kamar | This is a Dravidian language spoken in some parts of Raipur and Rewa districts of Madhya Pradesh. |
| Kanashi (Kanasi) | This language is spoken in parts of the Kulu valley in Himachal Pradesh. |
| Kanauji (Bhakha, Braj Kanauji) | This is an Indo-Aryan language spoken in some parts of Uttar Pradesh. Tirhari is a dialect of Kanauji. |
| Kanikkaran | This is a Dravidian language spoken in Kozikhode, Ernakulam and Thiruvanthapuram districts of Kerala and the Tirunelveli district of Tamil Nadu. |
| Kanjari (Kangar Bhat, Kangri) | This Indo-Aryan language, sometimes called the ‘Gypsy’ language, is spoken by over 60,000 people in parts of Andhra Pradesh, Madhya Pradesh, Uttar Pradesh and Rajasthan. Dialect: Kuchbandhi. |
| Kannada, Southern | It is a non-standard variety of Kannada, spoken by Kurumba people in Coimbatore and Dharmapuri districts, in pockets in Salem and North Arcot districts of Tamil Nadu and adjacent areas of Karnataka and Andhra Pradesh. |
| Karmali (Kohle) | This Austro-Asiatic language is spoken in some parts of Bihar, Odisha and West Bengal. |
| Katkari (Katari, Kathodi, Katvadi) | It belongs to the Indo-Aryan language family and is spoken by the Katakari tribes found in some parts of Gujarat and Maharashtra. |
| Kawari | An Indo-Aryan language spoken by about 33,000 people in Raipur and surrounding districts of Madhya Pradesh and some parts of Maharashtra and Odisha. |
| Keer (Kir) | It is in very limited use in some parts of Madhya Pradesh. |
| Khamti (Kham-Tai, Khantis, Tai Kam Ti) | It is spoken by the Khamti tribes found in some parts of Lakhimpur district of Assam and parts of Arunachal Pradesh. |
| Khamyang | It is spoken in some parts of Assam. |
| Khandesi (Dhed Gujari) | It is an Indo-Aryan language which is spoken by the Khandesi tribes found in some parts of Maharashtra and Gujarat. Dialects: Ahirani (Ahiri), Kunbi (Kunbau), Rangari, Khandesi and Kotali Bhil. |
| Kharia (Haria, Kharvi, Khatria, Kheria, Khadia, Khariya) | It is spoken primarily in the Ranchi district of Bihar and also in Raigarh district of Madhya Pradesh, Sundargarh district of Orissa and parts of Assam, Tripura, West Bengal and Andaman and Nicobar Islands. Dialects: Dhelki Kharia, Dudh Kharia and Mirdha-Kharia. |
| Kharia Thar | It is spoken in some parts of Bihar. |
| Khasi | It is an Austro-Asiatic language spoken in Khasi-Jaintia hills, Assam, Meghalaya, Jammu and Kashmir, Manipur, Punjab, Uttar Pradesh, West Bengal. Dialects: Bhoi-Khasi, Jaintia, Lyng-Ngam, Nongtung, Khasi and War. |
| Khirwar (Khirwara) | It is a Dravidian language spoken by the Khirwar tribes of the Sarguja district of Madhya Pradesh. |
| Kinnauri, Chitkuli (Chitkuli, Tsitkhuli, Kinnauri, Thebarskad) | It is spoken in some parts of the Kinnaur district of Himachal Pradesh. |
| Kinnauri, Lower (Kinnaurayanuskad, Kanoreunu Skadd, Kanorug Skadd, Kunawur, Tibas Skad) | It is spoken mainly in the Kinnaur district of Himachal Pradesh. It is also spoken in the Tibet border areas and in parts of Uttar Pradesh, Punjab, Kashmir and Himachal Pradesh. Dialects: Harijan Kinnauri and Malhesti ( Milchang). |
| Kinnauri, Upper (Nyamskad, Mnyamskad, Myamkat, Nyamkat, Bud-Kat, Sangyas) | It is spoken in some parts of the Kinnaur district of Himachal Pradesh. Dialects: Nesang and Puh. |
| Kishanganjia (Shreepuri, Siripuria) | It is spoken in some parts of Bihar. |
| Kishtwari | This is an Indo-Aryan language spoken by the Kashtwari tribes of Jammu and Kashmir. |
| Koch (Koc, Kocch, Koce) | This is a Tibeto-Burman language spoken in some parts of Assam, Tripura, Meghalaya and also in Bangladesh. Dialects: Banai, Harigaya, Satpariya, Tintekiya and Wanang. |
| Koch | This is an Indo-Aryan language spoken in the Cooch Behar district of West Bengal. It is distinct from Tibeto-Burman Koch spoken in Assam, Tripura and Bangladesh. |
| Koda (Kaora, Korali, Korati) | It is spoken in some parts of Bihar, east Madhya Pradesh, Sambalpur district of Odisha and West Bengal. Dialects: Khaira, Mirdha-Kora, Bankara, Birbhum and Dhangon. |
| Kodagu (Kadagi, Khurgi, Kotagu) | It is spoken mainly in the Kodagu (Coorg) district of Karnataka by the Kodagu tribes. |
| Koireng | It is spoken in some parts of Manipur and Nagaland. |
| Kol (Dahit, Kolaboli, Kolar, Kolian, Kuli) | It is spoken in some parts of Assam, Bihar, Madhya Pradesh, Maharashtra, Odisha and West Bengal. |
| Kolai | It has very limited speakers in the border areas between Andhra Pradesh and Odisha. |
| Kolami, Northwestern (Kulme, Kolam, Kolmi) | It is a Dravidian language that is spoken in some parts of Andhra Pradesh, Madhya Pradesh and Maharashtra (Yavatmal, Wardha, and Nanded districts). Dialects: Madka-Kinwat, Pulgaon, Wani and Maregaon. |
| Kolami, Southeastern | It is a Dravidian language that is spoken in some parts of Adilabad district of Andhra Pradesh and Chandrapur and Nanded districts of Maharashtra. Dialects: Metla-Kinwat, Utnur, Asifabad and Naiki. |
| Kom | It is a Tibeto-Burman language spoken in the east and central Manipur. Kolhreng is its dialect. |
| Konda-Dora (Porja) | It is a Dravidian language that is spoken in some parts of Andhra Pradesh (Konda-Dora), Orissa (Kubi) and Assam. Dialects: Konda and Kubi. |
| Konkani, Goanese (Gomataki, Goan) | It is an Indo-Aryan language that is spoken in the southern coastal strip of Maharashtra, primarily in the districts of Ratnagari, and in Goa and in parts of Karnataka and Kerala. Dialects: Standard Konkani (Goanese), Bardeskari (Gomantaki), Sarasvat Brahmin, Kudali (Malvani), Daldi (Nawaits), Chitapavani (Konkanasths) and Mangalore. |
| Koraga, Korra (Koragar, Korangi) | It is a Dravidian language that is spoken in some parts of Kerala. |
| Koraga, Mudu | It is also a Dravidian language that is spoken in some parts of Kerala. |
| Koraku | It is an Austro-Asiatic language spoken in parts of Surguja district of Madhya Pradesh. |
| Korku (Bondeya, Bopchi, Ramekhera, Kurku-Ruma) | This language is spoken in parts of southern Madhya Pradesh and northern Maharashtra by the Korku or Bapchi tribes. Dialects: Bouriya, Bondoy, Ruma and Mawasi. |
| Korwa | It is spoken in some parts of Bihar, Madhya Pradesh, Maharashtra, Uttar Pradesh and Andhra Pradesh. Dialect: Majhi-Korwa. |
| Kota | It is a Dravidian language that is spoken in some parts of Chennai and Nilgiri Hills in Tamil Nadu. Dialect: Ko Bashai. |
| Koya | It is a Dravidian language that is spoken in some parts of Andhra Pradesh, Maharashtra, Madhya Pradesh and Odisha. Dialects: Malakanagiri Koya, Podia Koya (Gotte Koya), Chintoor Koya (Dorla Koitur), Jaganathapuram Koya (Gommu Koya, Godavari Koya) and Dorli (Korla, Dora, Dor Koi, Dora Koi, Dorla Koitur, Dorla Koya). |
| Kudiya | It is a Dravidian language that is spoken in some parts of Kannur district of Kerala and Kodagu (Coorg) and South Kannara districts of Karnataka and parts of Tamil Nadu. |
| Kui | It is a Dravidian language that is spoken in some parts of Odisha, Andhra Pradesh, Madhya Pradesh and Tamil Nadu. Dialects: Khondiand Gumsai. |
| Kukna (Kanara, Kokna, Kokni) | It is spoken in parts of Karnataka, Gujarat, Maharashtra and Dadra and Nagar Haveli. |
| Kumarbhag Paharia (Malto, Malti, Maltu) | It is reported from the Santhal Pargana district, central eastern Bihar and Bankura, Bardhaman and Murshidabad districts of West Bengal. |
| Kumauni (Kumau, Kumman) | It is spoken in some parts of Assam, Bihar, Delhi, Madhya Pradesh, Kumaon region of Uttar Pradesh,; Maharashtra, Nagaland and Nepal. Dialects: Askoti, Chaugarkhiya, Danpuriya, Gangola, Johari, Khasparjiya, Kumaiya Pachhai, Pashchimi, Phaldakotiya, Rau-Chaubhaisi and Soriyali. |
| Kupia | It is an Indo-Aryan language spoken by people called Valmikis in Andhra Pradesh |
| Kurichiya | It is spoken in parts of Kannur district of Kerala and parts of Tamil Nadu by the Kurichiya tribes. |
| Kurumba | It is spoken in parts of Andhra Pradesh, Kerala, Tamil Nadu and Karnataka. Dialects: Naik-Kuruba, Pal Kurumba. |
| Kurumba, Alu | It is a Dravidian language spoken in some parts of Tamil Nadu, especially along the eastern side of Nilgiri Hills. |
| Kurumba, Betta | It is a Dravidian language spoken in some parts of Nilgiris district of Tamil Nadu; Mysore district of Karnataka and Waynad district of Kerala. |
| Kurumba, Jennu (Ten Kurumba) | It is spoken on the northern side of Nilgiri Hills on the border between Tamil Nadu and Karnataka; Mysore and Kodagu districts of Karnataka and Waynad district of Kerala. |
| Kurux (Uraon, Kurukh, Oraon, Urang) | It is a Dravidian language spoken in some parts of Bihar, Madhya Pradesh, Assam, Tripura, West Bengal and Odisha. |
| Kuvi (Jatapu) | It is a Dravidian language spoken in some parts of Andhra Pradesh. |
