The Brihadharma Purana, a thirteenth-century Sanskrit text from Bengal did allow local Brahmins to eat certain types of fish due to its dietary popularity amongst locals. While it might be true that the region making up present-day Rajasthan was called Rajputana, this name was given by the British and not the Mughals. Rajputs inhabit many regions in northern and central India, so the assumption that all inhabitants of Rajputana were Rajputs isn't fully accurate.
This Question is Also Available in:
हिन्दी