A team of technocrats helping
India make accessible ‘Efficient
Energy Everywhere.’
The story
behind the energy
Our Growth Story 
2011
Inception
Inception of Sinhal Udyog with a goal to bring to market high-performing smart meters.
2012
Kickstart
Kickstarted commercial production of smart metering solutions under Crystal brand name.
2016
First Pilot
Won APDCL Smart Grid Pilot Project for 14k meters (Among 14 projects sanctioned across India).
2018
100K Smart Meters
Manufactured the first 100k Smart Meters, becoming one of the first few organizations to receive the prestigious IS 16444 BIS License- a hallmark of trust for any organization’s technical capabilities to build reliable and robust smart meters.
2019
The Big Win
Awarded Assam Smart Grid Project for 134k Smart Meters.
2022
600K+ Smart Meters
Successfully deployed 600k+ Smart Meters, including the RF Mesh communication solution and the HES. Serving 4 Indian States- Assam, Bihar, Delhi, J&K.
2023
Implemented automation
900k+ smart meters deployed nationwide. Implemented automation and robotics in manufacturing to achieve 2M+ annual smart meter production capacity.
2024
8 M+ smart meters
Ongoing deployment of 12M+ smart meters. Building a monthly production capacity of 1 million smart meters at the Kimbal Mega Plant.
Our History
The fastest emerging energy-tech Indian enterprise
In 2011, Sinhal Udyog was established, determined to build and provide smart metering solutions in India. The organization rose to become the only Indian organization to make all three critical AMI components in-house with a comprehensive solutions portfolio.
Rebranding as Kimbal
12+ years of successful operations later under the Crystal brand name, come 2023. To carve a unique identity while going global with our products and solutions, Sinhal Udyog Private Limited rebranded as Kimbal.
On this day
With less than a 0.5% product defect rate, Kimbal is the most trusted and fastest-rising Indian energy-tech enterprise, building the most reliable, scalable, and cost-competitive solutions for the energy distribution ecosystem worldwide.
Backed by four decades of legacy in cost-competitiveness and reliability
Sinhal Udyog Private Limited is an initiative of the young technocrats of Crystal Group. The esteemed Crystal Group was established in 1981 and has ruled the PBX telephone market space for more than four decades by delivering cost-effective and reliable products while impacting the lives of many in the best ways possible.
Partner Testimonials
Anvil Cables Pvt. Ltd.
Our association with Sinhal Udyog Private Limited (.SUPL) is more than 7 years long. We were trying to break into the AMI market and associated with SUPL as one of our OEMs. Definitely one of the best strategic moves made by us. Their unwavering commitment to
Assam Power Distribution Company
This is to certify that M/s Sinhal Udyog, Kh No. 82/1/4, Mundka, Udyog Nagar, New Delhi, which has been awarded the work for implementation of an Artificial-Intelligence based Meter reading solution in APDCL against ERP PO No. 4400003381, letter ref- APDCL/1PDS/e
Intellismart
Sinhal Udyog (Crystal) as an OEM is an intelligent choice precisely because they bring to the table a complete AMI solution package. Their smart meters are, beyond any doubt, of high quality. With that, their RF-Mesh communication module and HES
Purbanchal Synergies
In 2021, we suffered an unprecedented situation. Our smart meter OEM could not deliver the products on time. That meant a delay in project delivery, which would lead to a loss of reputation and might incur penalties too. Besides, there are not many quality smart meter OEMs in the market.