Centre has asked all state governments to link Aadhaar with caste and domicile certificates to be issued to school students. It has also asked them to ensure that such certificates are issued within 60 days time to the students of Class V or VIII. The development assumes significance in the backdrop of complaints of delay in grant of scholarship to students belonging to SC and ST communities. <br/><br/>The Unique Identification Authority of India (UIDAI) issues Aadhaar a 12-digit number which acts as a proof of identity and address, anywhere in the country.