btech-1-year-engineering-mathematics-2-math-201-nov-2018.pdf BATU Question Paper and solutions BATU, Dr. Babasaheb Ambedkar Technological University, Lonere, Maharashtra डॉ. बाबासाहेब आंबेडकर तंत्रशास्त्र विद्यापीठ batuonline.com