The battle bugle has been sounded in Gujarat. Rahul Gandhi spent three days in the state and viciously attacked the government on GST, notes ban and the economy. Sources say he may be elevated to party chief with an eye on the Gujarat polls. PM Narendra Modi has held five rallies in the state in just 45 days. Meanwhile, BJP chief Amit Shah will campaign there tomorrow. Student leaders speak to NDTV about the key issues in the battle for Gujarat.