However, I can provide a brief summary of ancient India history:

Ancient India history can be divided into four major periods: the Prehistoric period, the Indus Valley Civilization (c. 3300 BCE - 1300 BCE), the Vedic period (c. 1500 BCE - 500 BCE), and the Mauryan Empire (c. 321 BCE - 185 BCE).

During the Prehistoric period, early human settlements emerged in various parts of India. The Indus Valley Civilization was one of the earliest urban civilizations in the world. It was centered around the Indus River and its tributaries and was characterized by advanced urban planning, agriculture, trade, and craftsmanship.

During the Vedic period, the Aryans migrated to India and brought with them their culture, language, and religion. The Vedas, the oldest sacred texts of Hinduism, were composed during this period. The caste system, which still exists in India, also originated during this time.

The Mauryan Empire, under the rule of Emperor Ashoka, was one of the most powerful and prosperous empires in ancient India. Ashoka is remembered for his conversion to Buddhism and his efforts to spread its teachings throughout his empire.

Other notable periods in ancient India history include the Gupta Empire (c. 320 CE - 550 CE), which saw a revival of Hinduism and the flourishing of art, science, and literature, and the Mughal Empire (c. 1526 CE - 1857 CE), which was characterized by its architecture, art, and literature.

As for famous books for UPSC exam, here are some recommended books:

1. India's Struggle for Independence by Bipan Chandra
2. Indian Economy by Ramesh Singh
3. A Brief History of Modern India by Rajiv Ahir
4. Indian Polity by M. Laxmikanth
5. Environment and Ecology by Majid Husain
6. Geography of India by Majid Husain
7. Ethics, Integrity and Aptitude by G. Subba Rao and P.N. Roy Chowdhury.