Guides
Plain-language explanations of how shelters work, what the rules are in India, and how to prepare, whether or not you build one.
Nuclear bunkers in India: a practical guide
What a nuclear bunker is, what it protects against, what public shelter exists in India today, and what it takes to build a private shelter that works.
PlanningIs it legal to build a bunker in India?
A private underground shelter is generally allowed in India, under local building rules. What applies, what needs approval and what is disclosed.
PlanningWhat decides the cost of a bunker in India
Why there is no honest price list for a nuclear bunker in India, the seven factors that set the cost, the hidden costs to plan for, and how to compare quotations.
PreparednessA family emergency plan for a missile or nuclear alert in India
How to receive official alerts in India, what to put in a go-bag, how to decide where to shelter, and how to write and practise a plan your whole family can follow.
ScienceHow long to stay in a shelter after a nuclear detonation: the 7:10 rule
What fallout is, how quickly it arrives, how fast it decays under the 7:10 rule, and why 48 hours is the minimum and two weeks is the planning figure.
EngineeringHow thick should bunker walls be? Radiation shielding in plain numbers
Halving thickness, protection factor and worked examples: how much concrete and earth a shelter needs, and why entrances matter more than walls.
EngineeringDesigning a shelter for Indian heat, monsoon and earthquakes
Why imported shelter designs fail in India, and how cooling, humidity control, waterproofing and seismic design keep a shelter working.
RegionalBuilding a bunker in Delhi NCR
What makes a shelter in Delhi, Gurugram, Noida and Faridabad different: seismic zone IV, ridge rock, floodplain soils, approvals and smog.
RegionalBuilding a shelter in Uttarakhand
Uttarakhand's 2025 land law, seismic zones IV and V, landslides, floods, border areas and helicopter access: what to know before planning a shelter in the hills.
RegionalBuilding a shelter in Himachal Pradesh
Section 118 land permission, seismic zones, monsoon landslides, snow, border areas and helicopter access: what to know before planning a shelter in Himachal.
MaintenanceShelter maintenance checklist: monthly, seasonal and yearly
What to check in a bunker or underground shelter every month, before summer and monsoon, every year and every five years, and the problems neglect causes.
Looking for recent developments? See preparedness news, a dated record of alerts, drills and policy in India with links to the original reporting.