Views Evaluation and assessment: The 'learning tower' of PISA Updated : July 23, 2020 01:48 PM IST PISA itself is not the remedy for what ails school education and the manner in which it is being sought to be conducted will certainly not make any difference. NCERT had done a decent job in conducting the NAS in 2017. We need to build upon it. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.