Va Tech Wabag (WABAG) today announced that India Ratings has upgraded its Long Term Credit Rating to ‘IND AA-' with a ‘Stable' Outlook, underscoring WABAG's robust operating performance with improvement in EBITDA margins, which has aided in achieving a deleveraged Balance Sheet and remaining Net Cash Positive. This rating upgrade is driven by WABAG's leadership in water treatment sector, healthy revenue visibility, continued focus on profitability and remaining asset light.