India's top 100 share market listed companies, along with their market capitalization (MCap) in billion USD:

1.Reliance Industries Ltd. (RELIANCE) - MCap: $248.4 billion

2.Tata Consultancy Services Ltd. (TCS) - MCap: $184.6 billion

3.HDFC Bank Ltd. (HDFCBANK) - MCap: $119.3 billion

4.Infosys Ltd. (INFY) - MCap: $96.1 billion

5.Housing Development Finance Corporation Ltd. (HDFC) - MCap: $89.5 billion

6.Kotak Mahindra Bank Ltd. (KOTAKBANK) - MCap: $76.2 billion

7.ICICI Bank Ltd. (ICICIBANK) - MCap: $69.7 billion

10.Bharti Airtel Ltd. (AIRTEL) - MCap: $53.1 billion

11.Bajaj Finance Ltd. (BAJFINANCE) - MCap: $48.4 billion

12.Wipro Ltd. (WIPRO) - MCap: $47.1 billion

13.Asian Paints Ltd. (ASIANPAINT) - MCap: $44.2 billion

14.Hindustan Unilever Ltd. (HINDUNILVR) - MCap: $43.3 billion

15.Tata Steel Ltd. (TATASTEEL) - MCap: $37.4 billion

16.UltraTech Cement Ltd. (ULTRACEMCO) - MCap: $37.2 billion

17.Tech Mahindra Ltd. (TECHM) - MCap: $34.3 billion

18.Larsen & Toubro Ltd. (LT) - MCap: $33.5 billion

19.State Bank of India (SBIN) - MCap: $32.9 billion

20.Nestle India Ltd. (NESTLEIND) - MCap: $32.4 billion

21.Bajaj Finserv Ltd. (BAJAJFINSV) - MCap: $30.9 billion

22.Titan Company Ltd. (TITAN) - MCap: $29.6 billion

23.Coal India Ltd. (COALINDIA) - MCap: $28.9 billion

24.Dr. Reddy's Laboratories Ltd. (DRREDDY) - MCap: $27.6 billion

25.Mahindra & Mahindra Ltd. (M&M) - MCap: $26.4 billion

26.NTPC Ltd. (NTPC) - MCap: $25.6 billion

27.Oil and Natural Gas Corporation Ltd. (ONGC) - MCap: $24.9 billion

28.Adani Ports and Special Economic Zone Ltd. (ADANIPORTS) - MCap: $23.8 billion

29.Adani Green Energy Ltd. (ADANIGREEN) - MCap: $23.3 billion

30.Bajaj Auto Ltd. (BAJAJ-AUTO) - MCap: $22.6 billion

31.Hindalco Industries Ltd. (HINDALCO) - MCap: $22.6 billion

32.SBI Life Insurance Company Ltd. (SBILIFE) - MCap: $21.9 billion

33.Avenue Supermarts Ltd. (DMART) - MCap: $21.1 billion

34.Divis Laboratories Ltd. (DIVISLAB) - MCap: $21.1 billion

35.HCL Technologies Ltd. (HCLTECH) - MCap: $20.8 billion

36.Hero MotoCorp Ltd. (HEROMOTOCO) - MCap: $20.7 billion

37.Axis Bank Ltd. (AXISBANK) - MCap: $20.7 billion

38.Shree Cement Ltd. (SHREECEM) - MCap: $20.4 billion

39.Maruti Suzuki India Ltd. (MARUTI) - MCap: $20.3 billion

40.Siemens Ltd. (SIEMENS) - MCap: $20.0 billion

41.Godrej Consumer Products Ltd. (GODREJCP) - MCap: $19.7 billion

42.ICICI Prudential Life Insurance Company Ltd. (ICICIPRULI) - MCap: $19.3 billion

43.State Bank of India (SBILIFE) - MCap: $18.8 billion

44.Nestle India Ltd. (NESTLEIND) - MCap: $18.3 billion

45.Dr. Lal Pathlabs Ltd. (LALPATHLAB) - MCap: $17.8 billion

46.United Breweries Ltd. (UBL) - MCap: $17.8 billion

47.Siemens Healthineers AG (SIEMENSHEALTH) - MCap: $17.4 billion

48.Havells India Ltd. (HAVELLS) - MCap: $17.2 billion

49.Indraprastha Gas Ltd. (IGL) - MCap: $16.9 billion

50.Bajaj Holdings and Investment Ltd. (BAJAJHLDNG) - MCap: $16.9 billion

51.Interglobe Aviation Ltd. (INDIGO) - MCap: $16.8 billion

52.Colgate-Palmolive (India) Ltd. (COLPAL) - MCap: $16.6 billion

53.Jubilant Foodworks Ltd. (JUBLFOOD) - MCap: $15.9 billion

54.Dabur India Ltd. (DABUR) - MCap: $15.5 billion

55.Bharti Airtel Ltd. (BHARTIARTL) - MCap: $15.5 billion

56.Dr. Reddy's Laboratories Ltd. (DRREDDY) - MCap: $15.2 billion

57.Petronet LNG Ltd. (PETRONET) - MCap: $15.1 billion

58.The Indian Hotels Company Ltd. (INDHOTEL) - MCap: $14.9 billion

59.Torrent Pharmaceuticals Ltd. (TORNTPHARM) - MCap: $14.8 billion

60.Hindustan Zinc Ltd. (HINDZINC) - MCap: $14.6 billion

61.Pidilite Industries Ltd. (PIDILITIND) - MCap: $14.5 billion

62.Shriram Transport Finance Company Ltd. (SRTRANSFIN) - MCap: $14.4 billion

63.Bajaj Finserv Ltd. (BAJAJFINSV) - MCap: $14.1 billion

64.Bharat Electronics Ltd. (BEL) - MCap: $13.7 billion

65.Godrej Properties Ltd. (GODREJPROP) - MCap: $13.6 billion

66.IndusInd Bank Ltd. (INDUSINDBK) - MCap: $13.6 billion

67.Avenue Supermarts Ltd. (DMART) - MCap: $13.4 billion

68.Voltas Ltd. (VOLTAS) - MCap: $13.2 billion

69.Mphasis Ltd. (MPHASIS) - MCap: $13.1 billion

70.Ultratech Cement Ltd. (ULTRACEMCO) - MCap: $12.9 billion

71.Sun TV Network Ltd. (SUNTV) - MCap: $12.8 billion

72.DLF Ltd. (DLF) - MCap: $12.7 billion

73.Tata Power Company Ltd. (TATAPOWER) - MCap: $12.6 billion

74.Gujarat Gas Ltd. (GUJGASLTD) - MCap: $12.6 billion

75.HDFC Life Insurance Company Ltd. (HDFCLIFE) - MCap: $12.3 billion

76.Mahindra & Mahindra Financial Services Ltd. (M&MFIN) - MCap: $12.2 billion

77.PNC Infratech Ltd. (PNCINFRA) - MCap: $12.2 billion

78.UPL Ltd. (UPL) - MCap: $12.0 billion

79.Tata Consumer Products Ltd. (TATACONSUM) - MCap: $11.8 billion

80.Bajaj Auto Ltd. (BAJAJ-AUTO) - MCap: $11.6 billion

81.Zee Entertainment Enterprises Ltd. (ZEEL) - MCap: $11.3 billion

82.Bharat Petroleum Corporation Ltd. (BPCL) - MCap: $11.1 billion

83.L&T Finance Holdings Ltd. (L&TFH) - MCap: $10.9 billion

84.Aditya Birla Capital Ltd. (ABCAPITAL) - MCap: $10.8 billion

85.The New India Assurance Company Ltd. (NIACL) - MCap: $10.7 billion

86.Indiabulls Housing Finance Ltd. (IBULHSGFIN) - MCap: $10.6 billion

87.PNB Housing Finance Ltd. (PNBHOUSING) - MCap: $10.4 billion

88.Power Grid Corporation of India Ltd. (POWERGRID) - MCap: $10.2 billion

89.Tata Communications Ltd. (TATACOMM) - MCap: $9.6 billion

90.Zomato Ltd. (ZOMATO) - MCap: $9.3 billion

91.Multi Commodity Exchange of India Ltd. (MCX) - MCap: $8.3 billion

92.Muthoot Finance Ltd. (MUTHOOTFIN) - MCap: $8.2 billion

93.Jubilant Pharmova Ltd. (JUBILANT) - MCap: $8.1 billion

94.Tata Steel Long Products Ltd. (TATASTLLP) - MCap: $7.8 billion

95.Indian Railway Catering and Tourism Corporation Ltd. (IRCTC) - MCap: $7.7 billion

96.The Ramco Cements Ltd. (RAMCOCEM) - MCap: $7.6 billion

97.Tata Steel BSL Ltd. (TATASTLBSL) - MCap: $7.4 billion

98. ICICI Prudential Life Insurance Company Ltd. (ICICIPRULI) - MCap: $7.4 billion

99.Minda Industries Ltd. (MINDAIND) - MCap: $7.3 billion

100.Avenue Supermarts Ltd. (DMART) - MCap: $6.9 billion

Note that market capitalization values are subject to change over time. Also, there may be other important companies listed in the Indian stock market.