This paper presents the status of Integrated Management System (IMS) implementation in a heavy equipments manufacturing industry in India. The purpose of this research is to get an idea of how the management and employees felt about the IMS implementation and whether they feel the benefits after implementing it using a survey questionnaire. It is found that ISO 9001 (Quality management systems) and ISO 14001 (Environmental management Systems) are mostly adopted by adopted by the plants of this company with 22.67% each. The Lean Manufacturing (LM) techniques; that were incorporated in the plants are TQM with 18% and followed by Kaizen with 16%. It is found that, 45% of the respondents selected "Highly Agreed" option that implementing IMS is helping towards sustainable development. The parameters: “Increased productivity” and “better risk analysis & management” are considered as the most influencing reasons to implement IMS in the plants with a mean value of 4.40. Correlation analysis; under the “barriers in implementing IMS” shows that “Lack of awareness” and “Lack of information & insufficient training” have strong correlation between them with a value of coefficient correlation (r) of 0.859.