Question: which is the largest source of national income in india
[{'answer': 'Textile industry', 'provenance': [{'wikipedia_id': '1472206', 'title': 'Economy of India', 'start_paragraph_id': 19, 'start_character': 316, 'end_paragraph_id': 19, 'end_character': 332, 'bleu_score': 1.0, 'section': 'Section::::History.:Mughal era (1526–1793).\n'}]}, {'provenance': [{'wikipedia_id': '1472206', 'title': 'Economy of India', 'start_paragraph_id': 76, 'start_character': 0, 'end_paragraph_id': 76, 'end_character': 898, 'bleu_score': 0.8118486219498131, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6794871069798505272}, 'section': 'Section::::Manufacturing and Industry.:Textile.\n'}]}]