Q.What is vulnerability? Divide India into natural disaster vulnerability zones based on droughts and suggest some mitigation measures.

Vulnerability is the degree to which a system, community, or region is likely to be adversely affected by a hazard. It depends on exposure, sensitivity, and the capacity to cope or adapt. In India, drought vulnerability is not uniform — it varies with rainfall, soil, and irrigation access.

Based on drought frequency and severity, India can be divided into three broad zones:

• Very High Vulnerability Zone: Arid and semi-arid regions of western Rajasthan, parts of Gujarat, and the rain-shadow areas of the Deccan plateau (like parts of Maharashtra and Karnataka). These areas receive low and erratic rainfall.
• High Vulnerability Zone: Central and southern peninsular regions, including parts of Madhya Pradesh, Telangana, Andhra Pradesh, and interior Tamil Nadu, where rainfall is moderate but highly variable.
• Moderate to Low Vulnerability Zone: The northeastern states, coastal regions, and the Indo-Gangetic plains, which receive more reliable rainfall or have better groundwater and irrigation facilities.

Mitigation measures for droughts include:

• Expanding watershed development and rainwater harvesting to recharge groundwater.
• Promoting drought-resistant crop varieties and shifting to less water-intensive cropping patterns.
• Improving irrigation efficiency through drip and sprinkler systems. …

Think of vulnerability not as the hazard itself, but as the exposure plus fragility of a place. A drought is a natural event — a prolonged period of below-normal rainfall. But whether that drought becomes a disaster depends on how vulnerable the region is: its soil, its water storage, its dependence on rain-fed farming, its poverty levels, and its ability to bounce back. Two regions can receive the same scanty rainfall; one may cope, the other may starve. That difference is vulnerability.

In India, drought vulnerability is largely a story of the monsoon’s fickleness. The southwest monsoon delivers most of the country’s rain between June and September, and when it weakens, delays, or withdraws early, the arid and semi-arid tracts suffer first. Based on the frequency and intensity of droughts, India is conventionally divided into three broad zones.

Extreme drought-prone zones cover the western and central parts of the country — much of Rajasthan, western Gujarat, and parts of Haryana and Punjab. These are areas with low and highly erratic rainfall, often below 500 mm annually, with sandy soils that hold little moisture and high temperatures that accelerate evaporation. Here, drought is not an exception but a recurring norm; a single failed monsoon can devastate crops and deplete groundwater.

Severe drought-prone zones include large parts of the Deccan plateau — interior Karnataka, Telangana, Maharashtra’s rain-shadow districts, and western Madhya Pradesh. These regions receive moderate rainfall (500–750 mm), but it is unevenly distributed and often arrives in intense bursts that run off rather than soak in. The rain-shadow effect of the Western Ghats leaves these areas dry even when coastal regions flood. Chronic water stress, over-extraction of groundwater, and a heavy reliance on rain-fed kharif crops make them acutely sensitive to any shortfall.

Moderate drought-prone zones span eastern Uttar Pradesh, Bihar, parts of Odisha, and some areas of Tamil Nadu and interior Andhra Pradesh. Rainfall here is higher (750–1000 mm), but its variability — late onset, early withdrawal, or long dry spells within the season — can still trigger drought. These regions often have better soil and water resources, but high population density and fragmented landholdings amplify the impact of any rainfall deficiency.