Hi...I want to visit Guangzhou and Shenzhen for business purpose from India

How many days you will stay in these cities? Great Wall is located near Beijing city, you can fly to Beijing to visit the Greal Wall, Forbidden City, Temple of Heaven and Summer Palace, then travel to Guangzhou to visit Yuexiu Park, Sun Yat-sen Memorial Hall, Temple of Family Chen and Shamian Island. From Guangzhou, you are suggested to take high speed train to Shenzhen and visit Splendid China and Window of the World.