Refer to the input text as context and select the correct relationship between 'HDFC' and 'HDFC Bank' from the available options.
Options: operator, stock exchange, chairperson, original broadcaster

Major gainers were Hindunilver (4.24per cent), Bharti Artl (4.12per cent), Axis Bank (3.59per cent), Lupin (3.45per cent), BHEL (3.01per cent), ITC (2.26per cent), HDFC (2.15per cent), Cipla (1.98 per cent), Bajaj Auto (1.81 per cent), Coal India (1.60 per cent), Dr Reddys (1.67 per cent), L&T (1.56 per cent), Heromotoco (1.20 per cent), HDFC Bank (1.06 per cent), SBI (1.43 per cent), Reliance (0.72 per cent), M&M (0.98 per cent) and NT per cent (0.87 per cent).
operator