Question

why do we study about foreign history rather than indian history

Answer 1

collect knowledge about whole world that how all country struggle in his life

Answer 2

Indians, unlike their counterparts in other ancient civilizations, did not have a thing for writing down their history!

Most of the sources and information we have on Ancient and Medieval India up until the arrival of Muslims on its borders is from Megasthenes (a Greek writer), Chinese Monk Xuanzang, and others like them.

In fact one of authorities on India and its history is al Biruni (from Mahmud Ghazni’s court) who wrote about India and its history. Only with the arrival of Muslim rulers in India do we finally see historical books emerging.

The only other sources of history we have left then are religious textbooks and doctrines or the historical monuments like the pillars of Ashoka and other inscriptions of the time.

Books like Arthashastra for example do give us an insight into how possibly the Indian Kings and State machinery functioned - but all historians agree that it would have been quiet impossible to follow the book in its entirety and at most probably only a few kings and emperors ever did follow the Arthashastra in letter and spirit.

There are also some folk stories and fables and poetry written by Indians during that period that has been used to get a sense of the times.

But historical books are rare.

When you read for example Al Basham’s The wonder that was India - this fact (about the lack of historical evidence) is referred by the author on almost every page while presenting his views and observations.