एजूकेशन LOAN

I WISH TO KNOW WHAT ARE THE CONDITIONS FOR GRANT OF EDUCATION LOAN TO A APPLICANT IF HE/ SHE HAS MORE THAN ONE CHILD. EACH CHILD IS PURSUING A PROFESSIONAL COURSE OF STUDY I.E. ONE CHILD IS PURSUING MS IN U.S.OF A. AND FOR HIM EDUCATION LOAN OF RS.7.50 LAKHS HAS ALREADY BEEN GRANTED BY A NATIONALISED BANK. FOR THIS LOAN ONLY THIRD PARTY GUARANTEE WAS OFFERED ALONG WITH SURETY BY THE FATHER.
NOW THE SECOND CHILD HAS GOT ADMISSION INTO FIRST YEAR OF MBBS COURSE. FOR THIS CHILD THE FEE STRUCTURE IS Rs. 2,50,000/- PER YEAR. NOW THE FATHER REQUIRES A LOAN OF Rs.7,50,000/-.
CAN ANYONE SUGGEST HOW TO GO ABOUT TO GET THE REQUIRED LOAN.
FATHER OF THESE CHILDREN IS CENTRAL GOVERNMENT SERVANT; HAS SEVEN-AND-HALF YEARS OF SERVICE LEFT BEFORE HIS SUPERANNUATION RETIREMENT. ON RETIREMENT HE WILL GET GRATUITY; COMMUTATION OF PENSION; LEAVE ENCASHMENT AND GROUP INSURANCE. AT PRESENT HE HAS NO CO-LLATERAL SECURITY TO OFFER. THIRD PARTY GUARANTEE CAN BE PROVIDED.