While I don't have access to real-time data, I can provide you with some well-known Magento Development Company India based on their reputation and expertise as of my last knowledge update in September 2021. Please note that the rankings and positions may have changed since then. Here are a few top Magento development companies in India:

Krish TechnoLabs: Known for their expertise in Magento development, Krish TechnoLabs is a highly regarded Magento solution partner based in Ahmedabad, India. They have a strong portfolio of successful Magento projects.

IndiaNIC Infotech Ltd: IndiaNIC is a prominent Magento development company based in Ahmedabad. They offer end-to-end Magento development services and have a proven track record of delivering high-quality solutions.