Below are places that sell Bibles and New Testaments in Hindi.
Amazon
https://www.amazon.com/Hindi-New-Testament-Psalms-Proverbs-FL/dp/8122110274
https://www.amazon.com
https://www.amazon.in/Hindi-New-Testament-Psalms-Proverbs-FL/dp/8122110274
https://www.amazon.in
https://www.amazon.co.uk/Hindi-Testament-World-Translation-Center/dp/1935189913
https://www.amazon.co.uk
Bible In My Language (BIML)
http://bibleinmylanguage.com/hindi-new-testament-with-psalms-and-proverbs-fl-hindi-edition-paperback/
http://bibleinmylanguage.com
Bible Society Australia
https://www.bibleshop.org.au/bibles/other-languages/hindi-new-testament-psalms-proverbs
https://www.bibleshop.org.au
Bible Society of India
http://www.bsind.org
Biblica
https://www.biblicaeurope.com/bible-shop/product/137/hindi-new-testament
https://www.biblicaeurope.com
Christian Basket
http://christianbasket.in/?s=hindi&post_type=product
http://christianbasket.in
Christian Store India
https://www.christianstore.in
Eden
https://www.eden.co.uk/shop/hindi-nt-pb-4061396.html
https://www.eden.co.uk
Ethnic Harvest
http://www.ethnicharvest.org/bibles/hindi.htm
http://www.ethnicharvest.org
This website has information on where to buy Bibles and New Testaments in Hindi in different places.
Messages of God's Love Multilingual
http://www.mgl-southasian.com/product/new-testament-roman-hindi/
http://www.mgl-southasian.com
Multi - Language Media
https://multilanguage.com/languages/hindi/
https://multilanguage.com
WorldBibles.org
http://worldbibles.org/language_detail/eng/hin/Hindi
http://worldbibles.org
This website has information on where to buy Bibles and New Testaments in Hindi in different places.
If you have any questions or need help finding a particular video, tract, book or any other Christian resource in any language of the world, please contact brianformissions@gmail.com