The eighth depression and fourth named storm of the 2020 North Indian Ocean cyclone season, Nivar originated from a disturbance in the Intertropical Convergence Zone.

The disturbance gradually organized and on 23 November, both the Joint Typhoon Warning Center (JTWC) and the India Meteorological Department (IMD) reported that a tropical depression had formed.

After that, it gradually weakened into a Deep Depression in the early hours of the 26th and the JTWC issued the final warning on the system at the same time.

Afterwards, the system entered back into the Bay of Bengal as a Deep Depression and made its second and final landfall at the Andhra Pradesh coast on the same day.

Tamil Nadu government suspended bus services until further orders in seven districts of Thiruvarur, Nagapattinam, Pudukkottai, Thanjavur, Viluppuram, Chengalpattu and Cuddalore.

[5] During a review meeting, Former Chief Minister of Tamil Nadu, K. Palaniswami asked his cabinet members and officials to remain completely vigilant and take necessary precautions ahead of the Cyclone.

[6] Measures were taken by the Tamil Nadu government to store dry rations and fuel for the people after the cyclone's impact.

[14] Many areas including Madipakkam, Velachery, Adambakkam and suburbs around Tambaram and low-lying regions along the river Adyar were flooded.

[17] The Chief Minister of Puducherry V. Narayanasamy reported that the initial loss in agriculture and other sectors was estimated at ₹4 billion (US$54.2 million).