Accessibility statement

This statement covers tathavastu.xyz, the Tatha Vastu web app, the site app and the client bill room, run by TATHA VASTU PRIVATE LIMITED. It takes effect on 1 November 2026.

Our commitment

Billing engineers, site engineers and client engineers should all be able to read, check and certify a bill, whatever device they use and whatever their abilities. We design and test Tatha Vastu against the Web Content Accessibility Guidelines (WCAG) 2.2 at level AA, and we treat a barrier we find as a defect to fix, not a feature request.

This commitment is in keeping with the Rights of Persons with Disabilities Act, 2016 and the accessibility standards Indian public bodies follow, many of whom are our customers' clients.

What we do

• Every page works with a keyboard alone, with a visible focus outline.
• Headings, landmarks and labels are marked up so screen readers can move through a bill by section and line.
• Text and controls meet WCAG AA contrast on light and dark grounds. Status is never shown by colour alone: a held line says Hold, a deviation says Over BOQ.
• Bill tables have header cells, so each quantity and amount is read with its column name.
• Forms label every field above it and name the problem in words when something is missing.
• Pages reflow on a phone without sideways scrolling, and text can be enlarged to 200% without loss.
• Movement on the site is short and respects the reduced motion setting of your device.
• Photographs carry text alternatives that say what they show.

The site app

The site app is used outdoors, often in sunlight and with gloves. Its buttons are large, its numbers use a clear monospaced type, and every measurement field accepts typed input, so no task depends on a gesture alone.

Large numbers follow Indian digit grouping, such as 18,49,293, in every screen and export, and units are written out (cum, sqm, rmt, kg, nos) rather than shown as symbols, so a screen reader reads a quantity the way an engineer would say it.

The client bill room

The bill room is often opened by a client's engineer on an office computer with a screen magnifier or a screen reader. The certify, certify part and hold actions are real buttons with text labels, every comment thread is a list in reading order, and the reason for each held line is read with the line it belongs to.

Known limits

• Bill packages exported to PDF follow the client's printed format. We tag headings and tables in these files, but a complex client format can still read less well with a screen reader than the same bill in the web app. The web app version of every bill is fully accessible.
• Photographs uploaded by site engineers do not carry descriptions unless the engineer adds a note. The measurement they belong to is always available as text.

How we check

We test new screens with automated checks and by hand with a keyboard and a screen reader before release, and we review the main journeys, from measurement to certified bill, at least twice a year.

Reporting a barrier

If something on Tatha Vastu is hard or impossible for you to use, tell us through the contact form with the topic set to support. Say which page or screen, what you were trying to do, and the device and assistive technology you use. We acknowledge within one working day, and where we cannot fix the barrier at once, we will help you get the information or complete the task another way.

If you are not satisfied with our answer, you can raise it with our Grievance Officer.