Have you ever noticed how the major portion in the history textbooks only depict about the Islamic Kings and highlight their traditions and culture, ignoring most of the other kingdoms and kings who ruled the the country. Islam and Islamic Kingdoms were present in India for almost 750 years i.e from 1193 AD to 1947. It is expected that India has an history of 5000 years, 750 years is just 15 percent of 5000 which is ruling the Indian history context in the history textbooks.
It is believed that Islam was brought into India at the time of the prophet, around 600-800 BC. There are proofs in the form of buildings, Cheraman Juma Masjid, the first Mosque in India, Kerala and Palaiya Jummal Palli Majid in Tamil Nadu built by an Arab Preacher and Yemeni Traders respectively.
The Islamic rule has begun in 721 AD when invaded Sindh under Mohamad Bin Qasim, and almost after 400 years in the second battle of Tarain, Mu-Izz Al Din defeated PrithviRaj Chauhan, Muslim rule was established in North India and ended with the death of Aurungzeb in 1705. Aurangzeb has fought and expanded the frontiers of Islamic Empire across India. Aurangzeb is depicted as a pious Muslim who was chosen by Allah to spread Islam. Islamic dynasties had spread all across the nation. Along with the Mughals, many other Islamic dynasties were present in each and every part of the country and few of them even survived until the Independence. After the death of Aurungzeb, number of Islamic kingdoms rose like the, Hyderabad, Junagadh, Tonk, Bhopal, Rampur, Pataudi, Bahawalpur and so forth.
Now, the focal point, have you ever noticed how the history textbooks are filled upto the brim with the achievements and pride of the North Indian kings while kings of the Southern India barely left few footprints in the history books. History about Kings & Kingdoms of Bengal, Bihar, Orissa, Assam, Nagaland, Meghalaya, Mizoram, Manipur, and Tripura didn't even make it into the books. Lachit Borphukan single-handedly led the Ahom force to victory over an enormous Mughal army, it was considered one of the greatest military victories ever. Every year since 2000, the best passing out cadet at the national Defence Academy is awarded with the Lachit Borphukan Gold medal. You can't find much about these in the textbooks.
The biggest irony is that none of the the history textbooks ever taught any Indian about how TAWANG became a part of Indian and the contribution of the Naga's and other tribes in the nation's building. The history in textbooks about this region is only about the Yamuna-Gangetic plains.
Due representation about all the parts of India should be mentioned in the history textbooks. It is time, we need to find and correct the flaws in our textbooks. One's we've done this, the bias towards Islamic history will correct itself!