Top traders are the traders who are managing fund of more than 2500 crore (ICICI, HSBC, CITI Bank, Goldman Sach, etc.) from India and Singapore who have experience of more than 20 years.
They have started compound trading in Nifty with investment of Rs. 15000 in the year 2000 and made more than 24 Crore at the end of 7 years (2006).
Undoubtedly they are the proven traders, and trade replication from their portfolio will more or less be beneficial to your trading experience and outcome.