1 Jan - New Year’s Day (Arunachal Pradesh, Meghalaya, Manipur, Mizoram, Nagaland, Pondicherry, Rajasthan, Sikkim, Telangana, Tamil Nadu): A day to celebrate fresh beginnings and set resolutions for the year ahead.
2 Jan - New Year Holiday (Mizoram): An additional day off following New Year’s Day celebrations in Mizoram.
2 Jan - Mannam Jayanti (Kerala): Commemorating the birth anniversary of Mannathu Padmanabhan, a social reformer in Kerala.
11 Jan - Missionary Day (Mizoram): A day to honor the work of Christian missionaries in Mizoram.
12 Jan - Swami Vivekananda Jayanti (West Bengal): Celebrating the birth anniversary of Swami Vivekananda, a revered spiritual leader.
15 Jan - Magh Bihu (Assam): Marking the harvest festival of Assam with feasts and cultural festivities.
15 Jan - Makara Sankranti (Gujarat, Karnataka, Telangana, Sikkim): Celebrating the transition of the sun into the zodiac sign of Capricorn.
15 Jan - Pongal (Andhra Pradesh, Arunachal Pradesh, Pondicherry, Tamil Nadu): A harvest festival celebrated with traditional rituals and feasting.
16 Jan - Thiruvalluvar Day (Tamil Nadu): Honoring the ancient Tamil poet and philosopher Thiruvalluvar.
16 Jan - Kanuma Panduga (Andhra Pradesh): A day dedicated to the worship of cattle, particularly bulls, in Andhra Pradesh.
17 Jan - Guru Gobind Singh Jayanti (Chandigarh, Haryana, Jammu and Kashmir, Odisha, Punjab, Rajasthan): Commemorating the birth anniversary of Guru Gobind Singh, the tenth Sikh Guru.
17 Jan - Uzhavar Thirunal (Pondicherry, Tamil Nadu): Celebrating the contributions of farmers to society in Pondicherry and Tamil Nadu.
23 Jan - Netaji Subhas Chandra Bose Jayanti (Assam, Jharkhand, Odisha, Tripura, West Bengal): Honoring the birth anniversary of the Indian freedom fighter Netaji Subhas Chandra Bose.
23 Jan - Gaan-Ngai (Manipur): A festival celebrated by the Zeliangrong community in Manipur.