Foreign exchange repatriation

SIR,

WE ARE HAVING HEAD OFFICE IN INDIA AND BRANCH IN UNITED STATES, WE ARE RAISING EXPORT INVOICES FOR CLIENTS IN U.S FROM INDIA, BASICALLY ALL THE EXPENDITURE IS INCURRED AND THE WORK IS DONE IN U.S, SO THE AMOUNT IS DIRECTLY SENT TO THE BRANCH IN U.S, SO PLEASE REFER ME IF THERE ARE ANY REQUIREMENTS FOR THE AMOUNT TO BE REPRATRIATED IN TO INDIA AND THE TIME LIMIT .. PLEASE REFER THE NOTIFICATION NUMBERS