Post breakfast drive early for your same day excursion tour of Rajgir and Nalanda.
Rajgir is very important Buddhist site as Lard Buddha spent here 12 years of their life and also preached here. On arrival you will be visiting world peace pagoda, which is built on a hill. You can either take a ropeway or climb 600 stairs to reach this temple, later you can visit Swarn Bhandar, Venu Van and Saptaparni cave.
Post lunch continue drive to Nalanda and visit Nalanda University. According to historical sources, this university had lasted almost 800 years. It is believed to have had 2,000 teachers and 10,000 students. The knowledgeable teachers of Nalanda's University used to attract scholars from China, Korea, Japan, Sri Lanka, and Tibet, students used to come here to get a good education. It is also believed that it was a complete residential University. After visiting the ruins of Nalanda University, next you will visit Nalanda Museum.
Later you will return Gaya.
After the dinner you will be transfer to Gaya railway station in time for your overnight train to Varanasi.