Cotton prices dropped due to limited buying by domestic spinning mills and exporters. Kapas or raw cotton decreased as demand from ginners’ has declined at the higher level. Gujarat Sankar-6 cotton lost Rs 200 at Rs 42,500-42,700 for per candy of 356 kg. Kapas slipped by Rs 5-7 to Rs 930-1,108 for per maund of 20 kg.