Following are some Indian Companies who using SAP

Automotive
  •               Apollo Tyres India
  •               Hero India-Hero MotoCorp Ltd.
  •         Mahindra & Mahindra Ltd.,  India
  •         MRF, India
  •         Tata Motors, India
  •          Bajat AutoIndia
  •                 TVS Motors, India
  •                 Ford ,India
  •                 Eicher,India
  •         Honda Two Wheelers, India
  •         Maruti , India
  •                Rico Auto Industries Ltd.India
  •                Hindustan Motors Ltd.India
  •                Hero Cycles Ltd., India
  •                 Force Motors Ltd.India
  •             Bajaj TempoIndia


Oil and Gas
  • Oil and Natural Gas Corporation Limited (ONGC) India
  • Bharat Oman Refineries Limited (BORL) India
  • Indian OilIndia
  • BPCL,India


Consumer Products
  • Hindustan Unilever India
  • Madura Garments , India
  • BIG BAZZAR,India
  • VISHAL MEGAMART,India
  • Future Group, India
  • Aravind MillsIndia
  • VideoconIndia
  • OnidaIndia
  • SonyIndia
  • Coca colaIndia
  • PepsiIndia
  • Britania Industries, India
  • SamsungIndia
  • VOLTAS, India
  • TITAN, India
  • Nestle, India
  • Relaxo Footwear
  • ABG Cement

Engineering, Construction & Operations
  • GMR Group India
  • Hindustan Construction Company India

Healthcare
  • Wockhardt, India

Industrial Machinery & Components
  • Jindal Steel,India
  • Tata SteelIndia
  • Essar SteelIndia
  • Jindal Group, India
  • Bhusan SteelIndia

Telecommunications
  • Reliance Infocomm Limited India

Utility
  • Suzlon Power India

Chemicals
  • Tata Chemicals, India
  • LG Polymers ,India
  • Dulux Paints, India
  • Nerolac Paints, India
  • Asian Paints, India
  • Sudarshan Chemical
  • Nagarjuna Fertilizers
  • Marico Industries
  • Rallies India
  • VBC Ferro Alloys
  • Medi Corp Group
  • Madras Hydraulic Hose(p) Ltd.  
         http://www.madrashydraulic.com/
  • Shasun Chemicals and Drugs Limited
          http://www.shasun.com/
  • Bhansali Engineering Polymers Ltd.
  • Sterling Auxiliaries Pvt. Ltd.
http://www.sterlingaux.com/

  • Ambuja cements Ltd.
  • Haryana Leather Chemicals Ltd.
http://www.leatherchem.com/ 
  • Bhansali Engineering Polymers Ltd.
http://bhansaliabs.com/
    Pharma-Medical
    • Dabar, India
    • Dr. Reddy, India
    • Glenmark Pharma , India
    • Emcure PharmaIndia
    • Zandu , India
    • Nicholas Piramal
    • Intas Pharma
    • Alembic Pharma
    • Emcure Pharma

    Government Sector
    • GAIL, India
    • BHEL,India
    • BSNL,India
    • BPCL
    • IPCL
    • ONGC

    Others Companies using SAP
    • Taco
    • Tata Toyo
    • TTL
    • SUBROS
    • Bajaj Tempo
    • BSES
    • ISPAT
    • NFCL
    • Nestle
    • Times of India
    • Hindustan Times
    • Kalyani Brakes
    • Finolex Cables
    • Kirloskar
    • Gujarat Reclaim & Rubber Products
    • Carbon Black
    • CEAT
    • EID Parry
    • Sundaram Clayton
    • Bharat Froge
    • STERLITE Group
    • BOSCH
    • LIBERTY
    • Matrix Lab
    • Gautier Furnitures
    • Malabar Cements
    • BEML India
    • Jaihind Industries Ltd.
    • Relaxo Footware
    • Reliance Retail
    • Spencers Retail
    • Sundram Fasteners
    • Welspun Group
    • Man Force Trucks Pvt. Ltd.
    • Mother Dairy
    • Force Motors Ltd.
    • Malayala Manorama
    • Rallies
    • Rahman Industries Ltd.
    • Quillon Exporter
    • Continental Carbon India Limited
    • Honeywell International
    • Gujarat State Petroleum Corporation
    • Orient Paper Industries

    • Intex Technologies Ltd.
    • Grasim Industries
    • Noble Cashew
    • Zydus Cadila Healthcare
    • ONE97 Communication
    LIST OF IT (SOFTWARE) COMPANIES USING SAP IN INDIA: In India all big IT companies’ names are associated with SAP Implementation. Some of the names are given below-
    •  TCS
    •   IBM India 
    •  Accenture India
    •  HCL Technologies Ltd.
    •  NIIT Limited
    •  CGI
    •  Hewlett-Packard (HP) - India
    •  ITC Infotech
    •  Mindtree Consulting
    • Intelligroup Asia Pvt. Ltd.
    •  L&T Infotech
    •  Siemens Information systems Limited
    •  Mahindra-Satyam
    •   Wipro Infotech
    •   CSC India
    •  Capgemini India
    •   Deloitte
    •   Fujistu
    •  KPIT
    • Coconut Software
    • SAPLABS India
    • BearingPoint
    • Atos Origin
    • LogicaCMG
    • Intel Technology India Pvt. Ltd.
    • Microsoft Corporation India Pvt. Ltd.
    •  Caritor India
    • Covansys India
    • Bristlecone India
    • T-Systems
    • NTT DATA


    LIST OF IT & NON-IT COMPANIES USING SAP IN INDIA - SAP IN INDIA / LIST OF COMPANIES THAT USE SAP / COMPANIES USING SAP / LIST OF SAP CONSULTING COMPANIES / LIST OF COMPANIES USING SAP:


    List of IT companies that use SAP / SAP Consulting Companies:In India all big IT companies names are associated with SAP Implementation.Some of the names are given below-
    1.                   TCS
    2.                  IBM India 
    3.                  Accenture India
    4.                  HCL Technologies Ltd.
    5.                  NIIT Limited
    6.                  CGI
    7.                  Hewlett-Packard(HP)- India
    8.                  ITC Infotech
    9.                  Mindtree Consulting
    10.              Intelligroup Asia Pvt. Ltd.
    11.               L&T Infotech
    12.               Siemens Information systems Limited
    13.               Mahindra-Satyam
    14.              Wipro Infotech
    15.               CSC India
    16.               Capgemini India
    17.               Deloitte
    18.               Fujistu
    19.               KPIT
    20.              Coconut Software
    21.               SAPLABS India

    List of Non-IT(Hardcore Companies) that use SAP / List of SAP Consulting Companies: I think that mostly all  the big companies in India either running on SAP implemented ERP solution or going to implement SAP.Some of the names are given below-
    1.                   Reliance Industries
    2.                  Tata Steel
    3.                  Jindal Steel
    4.                  GAIL
    5.                  BPCL
    6.                  ONGC
    7.                  Indian Oil
    8.                  BHEL
    9.                  Bajat Auto
    10.              TVS Motors
    11.               Mahindra & Mahindra
    12.               Tata Motors
    13.               Eicher
    14.              Ford India
    15.               Samsung
    16.               Tata Chemicals
    17.               Britania Industries
    18.               Hero Honda
    19.               Honda Two wheelers
    20.              Maruti
    21.               Dabar
    22.              Asian Paints
    23.              Nerolac Paints
    24.              Dulux Paints
    25.              Videocon
    26.              Sony
    27.              Onida
    28.              Pepsi
    29.              Coca cola
    30.              Glenmark Pharma
    31.               Dr. Reddy
    32.              Essar Steel
    33.              Jindal Group
    34.              Bajaj Tempo
    35.              Kirloskar
    36.              Bhusan Steel
    37.              Daikain India
    38.              LG Polymers India
    39.              KRBL
    40.             BSNL
    41.              Madura Garments
    42.              Aravind Mills
    43.              Emcure Pharma
    44.             Future Group
    45.              BIG BAZZAR
    46.              VISHAL MEGAMART
    47.              Zandu
    48.              TITAN
    49.              VOLTAS
    50.              Nestle
    51.       IFB Industries
    52.       MYK SCHOMBURG
    53.       AVAYA
    54.       Advanta India
    55.       Solar Semiconductor


    Hundreds of other IT and Non-IT companies are also using SAP...Please let me know about any other companies that is using SAP or going to implement so that I could be able to add those name in this list....Leave your comments for any suggestions or query...