Lingel Windows and Doors Technologies Pvt. Ltd. Lingel Windows and Doors Technology Pvt. Ltd. Bhiwadi, Rajathan, Lingel Window and Doors Technologies, a premium, leading German Window brand completes 15 years of providing superior, customised windows solutions across India. The German headquarter completed 60 years last year in providing hi-end windows solutions across Germany. Lingel has over 300 plus team members that work across various verticals in sales, manufacturing and marketing across India.