how aobut this The Muslim community of the Indo Pakistan subcontinent 610 1947 a brief historical analysis by Ishtiaq Husain Qureshi History of the Jats by Ram Sarup Joon Sindhi culture by Upendra Thakur An advanced history of India by Ramesh Chandra Majumdar Hemchandra Raychaudhuri Kalikinkar Datta All the books I cited can be found in a good library