Without paying the tax on service tax

Sir

I got service tax bill for OCT2016 ,NOV2016,DEC 2016,JAN 2017 , MARCH 2017 .

I didnt paid service tax amount any of these bill so far by e payment,Now my qureries

1.CAN I PAY THE SERVICE TAX AMOUNT FOR OCT 2016 TO FEB 2017 AT PRESENT INCLUDING INTEREST AMOUNT BUT IAM NOT HAVING THE SUFFICENT AMOUNT TO PAY FOR THE BILL MARCH 2017 .

2.CAN I PAY THE MARCH SERVICE TAX DUE AMOUNT NEXT MONTH.

3.IF SO CAN I E -FILE THE SERIVCE TAX RETURN FOR THE MONTH FOR OCT-MARCH 2017 ON APRIL 25 2017.

AND CAN I FILE THE ST3 RETURN FOR THE MONTH MARCH LATER ON.

4.IS IT POSSIBLE TO FILE THE ST3 RETURN WITHOUT PAYING THE MARCH BILL AMOUNT.

SHOULD I ENTER THE SERVICE TAX AMOUNT ON THE JAN FEB MARCH 2017 ST3 COLUMN WHILE FILING .WILL THE RETURN UPLOAD WITHOUT PAYING THE TAX AMOUNT.

KINLDY REPLY AS IAM NEW TO SERVICE TAX SECTION.

THANK YOU

SUNIL