Samacheer Kalvi 8th Social Science - History Unit 7 Book Back Answers: Samacheer Kalvi 8th Standard New Social Science Book Back 1 Mark and 2 Mark Question & Answers PDF uploaded and available below. Class 8 New Syllabus 2021 to 2022 Book Back Question & Answer available for both English and Tamil Mediums. Class 8 Social History Book Unit 7 - Urban changes during the British pe...