Questions we are asked

No. A precision missile or bunker-busting bomb aimed at a private shelter will destroy it. Even deeply buried national facilities have been damaged this way. Qilyx shelters are designed for what harms most people: fallout, blast at a distance, debris, toxic air and weeks without services. Keeping the shelter secret is part of the protection.

Our design targets are protection factors from 1,000 (Haven) to 10,000 or more (Estate). A protection factor of 1,000 means people inside receive one thousandth of the dose outside. You can try the shielding calculator.

Reinforced concrete walls from 300 mm to 600 mm and more, roofs from 400 mm to 750 mm and more, under 1 to 3 metres of compacted earth. Final figures are set by our structural engineer for your site.

The roof usually sits 1 to 3 metres below ground, so the floor is typically 4 to 7 metres down, depending on class, soil and water table.

Yes, through gas-tight construction, NBC filtration with HEPA and activated carbon, positive internal pressure and a decontamination zone at the entry. Filters must be replaced on schedule.

India has no dedicated standard for private shelters. We design to Indian codes including IS 456, IS 1893 and IS 4991 and the National Building Code, and benchmark performance against Switzerland's TWK 2017 shelter guidelines. Filters are classified under EN 1822. See what the world follows.

Structures are designed to IS 1893 for your seismic zone. Waterproofing is multi-layered with sumps, twin pumps and backflow valves. We test groundwater before design and will advise against a site that floods badly.

Yes. A private underground structure on your own land is generally allowed, subject to local building bye-laws and approvals for excavation. Rules vary by state and city. We prepare the approvals and tell you exactly what is disclosed. See our guide: is it legal to build a bunker in India?

No. Many shelters are standalone: on open land, beneath a garden, within an estate or at a commercial site, with a concealed entrance. We choose the location for speed of access, ground conditions and discretion.

Yes, where the land can be held lawfully and the ground is safe. Land laws in Uttarakhand and Himachal restrict purchases by outsiders, slopes and floods need careful study, and access must work in monsoon and snow. A helipad is possible with DGCA approval, but civil flights can be stopped in a crisis, so retreats are planned for leaving early by road. See retreat shelters.

No, and anyone who promises that is not being straight with you. Land records, building approvals and heliport licences are held by the authorities. We keep the location confidential from the public through NDAs, split crews and an ordinary-looking finish.

No. We only build custom shelters in reinforced concrete. Prefabricated steel units corrode in wet Indian soils, are hard to conceal and are designed for one climate.

Every shelter is custom, so cost depends on size, autonomy, protection level and ground conditions. We give you a fixed, written quotation after a site assessment. See what shapes the cost.

Between 4 and 24 months after approval, depending on class, soil and access. Design and approvals usually add 2 to 4 months before that.

Not for an individual flat. For housing societies and developers we design shared community shelters, with agreement from the society or builder.

Anywhere the site and approvals allow. Most enquiries come from Delhi NCR, Mumbai, Pune, Bengaluru, Hyderabad, Punjab, Rajasthan, Gujarat and the hill states.

14 days (Haven), 30 days (Keep), 90 days (Citadel) or 180 days and more (Estate), fully sealed with stored water, food, power and filtration for everyone.

Yes. Vegetarian, non-vegetarian, eggetarian, Jain, vegan, satvik and halal stores are planned with you and kept in separate, labelled storage with separate utensils. See food stores.

It would without cooling. Every shelter has filtered cooling and dehumidification sized for full occupancy and run from backup power.

Batteries take over instantly, backed by solar and a generator. If everything fails, the air system has a hand crank.

You, and a small number of named people on our team bound by NDA. Crews are split so each sees only its part. Some drawings must go to local authorities for approval, and we explain exactly what is shared. See discretion.

No. We ask for your state only, and ask for the site address after an NDA is signed.

No company can honestly promise that. During an attack, travel may be impossible. We make sure your shelter and your people are ready beforehand, and inspect and restock afterwards when it is safe. See the emergency plan.

Seasonal visits timed to summer and the monsoon, pressure and filter tests, battery, pump and generator checks, rotation of water, food and medicines, and guided drills. Plans range from one visit a year to quarterly visits with remote monitoring. See maintenance plans.

Yes. We inspect and test existing bunkers, basements, safe rooms and imported steel units, give you an honest report of what protection they offer, and can upgrade and maintain them.

The shelter stays with the property. On your instruction we hand drawings to the new owner, re-key the access codes and transfer maintenance.