i am incurring losses as they are trading on my behalf in future and option and continuously showing loss and since then my 75000/- lost. any idea regarding their business.

if it is PMS profit and loss is the name of the gameu cant do anything, even it may not be possible to withdraw, try to change ur relationship manager

Their business is sound fundamentally. Check with your relationship manager to see how much experience he actually has. Trading in F & O by inexperienced people irrespective of their qualifications is very bad for your financial health.See the statements on how the trades are being executed, do go into the details , their management will support you in this case