Ninety Degree Stone is a unit of the world-renowned, R.K. Group, which has been a stalwart in marbles and granite ever since its inception in 1989. Ninety Degree Stone is a niche division, specializing in natural stones allocated from mines around the world. Equipped with state-of-the-art machinery, proficient craftsmanship, in-house procurement and highly evolved design sense, we are ready to transform spaces into an immersive experience.

Our vision is to provide stones that are not only an aesthetic delight but also have the strength to withstand the tests of architecture. We’re catering to multiple national and international clients with our vast and exclusive collection ranging from imported marbles to several forms of granite, quartzite, sandstone, slatestone, etc. Come visit our factory, where so much happens every day. Create your own catalogue and join us as we celebrate luxury and nature.


Secret recipe of our Supremacy!

We’re enchanted by the earth’s raw charm and find ourselves basking in the treasure of perfect imperfections every natural stone offers.

Preserving the essence of nature, we toil every step of the way so the quality never diminishes and the authenticity never dies.

Our final goal stays unsmudged i.e. to provide seamless finish and polish to every stone and marble.

The third wheel to our vision and mission, unprecedented technological innovation is the rider between our target and us.

When the best processes meet the best technology a cajoling transformation is bound to take place. We extract and curate designs that last for a  lifetime and keeps the natural charm intact.

The novelty of our textures lie in them being more than about touch and feel of the product. It’s a 4-pillar game of classic thought, modern design, practicality and versatility.

As sturdy as the stone, yet opposite in opacity, the people and processes at
Ninety Degree Stone are as clear and transparent as a crystal.

Stones and marbles make it to home forever, they’re almost its definition. While our designs are contemporary they are quintessentially timeless in elegance and style.

It’s not just about building homes and buildings. It’s more about building trust in you and for your spaces. And that’s how we become a legacy together.

The Team

Our team knows the land, the language and the stone. What stands behind Ninety Degree Stone is a team of veterans whose eyes for precision illuminate the way ahead.



Right at the helm of our enterprise is the man who built it from the ground up.
Mr. VINEET PATNI hails from the illustrious PATNI Family of the RK Marble Group,
the Gold Standard of this Industry.
With a Penchant for New Technology and Coupled with a degree from Cardiff &
his intricate knowledge of this industry like no other, he has been able to translate the way people perceive stones.
Come, share his vision at our factory and get enthralled by
Perfection on Stone.




They say “A Journey of a thousand miles begins with a single step “.
For Ninety Degree Stone, this step was taken by its Director Mr. Vinay Gangwal.
With an experience of over 20 years in the stone industry Mr. Vinay Gangwal
has now been illuminating the new generation of Ninety Degree Stone.
A man of wisdom, constant hard-work, integrity, sincerity, competence and supreme
confidence, Mr. Vinay Gangwal dreamed big. He is primarily responsible for
procuring the blocks and slabs in Ninety Degree Stone. The tasks were bigger, roads
were rugged, hills steep and insurmountable, yet with faith in his heart he started
upwards and climbed till he reached his dreams and made Ninety Degree Stone
what it is today.

Corporate Media

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