వ్యాఖ్యానించండి

SIR,I ALREADY HAVE A DISABILITY CERTIFICATE ISSUED BY GOVT OF TAMILNADU,BUT I DO NOT HAVE A UDID.,MY QUESTIONS ARE;
1.DO I STILL NEED A UDID TO APPLY FOR AN EDUCATIONAL LOAN? OR IS A DISABILITY CERTIFICAE SUFFICIENT ?
2.WHAT IS THE PROCEDURE TO APPLY FOR UDID ?