How we pick products

Where the information comes from

Every product detail on the site is taken from a named public source, such as the manufacturer's own product page, a standards body or an official document. Each guide lists its main sources at the end.

The site does not claim to have used or tested any product. Statements about performance are limited to what the manufacturer or a standard states.

How products are chosen

A product is listed when its specifications fit the use described in the guide and the manufacturer publishes enough detail to compare it with others. Each listed product carries a statement of who it suits and one limitation taken from the same sources.

The commission rate does not decide which products are listed or how they are described.

Prices

Prices change often and vary by seller, so the site does not print them. Product buttons open the matching search on Amazon India, where the current price and delivery details are shown.

Updates and corrections

Guides are reviewed on a schedule, and the review date shown on each page changes only when the guide was checked again. A reader who finds an error can write to the address on the contact page, and confirmed errors are corrected on the page.