I started studying Indian history and I immediately ran into problems.
The first one is language - in the region I am interested in (the southern parts of India) - primary sources appear in several different languages. It's not sufficient to have passing familiarity with a language - a ton of these ancient writers were poets trying to out-do each other with their skills at crafting verses. To research Indian history, one must learn several languages.
As someone who isn't trying to actively research history, secondary sources suffice for me. But then, one runs into the next big hurdle there. There have been very few authors writing about south Indian history post Independence. In 1928 (if I recall correctly), someone at the University of Madras wrote a PhD thesis on the Pallavas. I haven't been able to find any other material focused on the Pallavas published since then. Oh, and the 1928 PhD thesis - there's only a handful of those copies in the really large libraries around the world. A low quality scan of one of these copies has made it to the internet - and that remains my best source of information on the Pallava dynasty.
Then there are people like the Khalbaras - a bunch of rulers who came out of nowhere and ended up dominating 3 superpowers in that region. Yet, these guys didn't leave behind any historical record and only passing references to them as "the imprisoners of 3 crown princes" remain as tombstones and signposts for a group of rulers who would have to take down armies of war elephants multiple times to get to that point.
There are also open problems of Chronology in several important periods (for example, the era covered by the Sangam literature - Karikala and all those guys). This is basically a group of poems that record history in disconnected joints. (It's not known how much of this is real history and how much is invented by poets). We have the pieces of a puzzle, with possibly some fake pieces, but we don't know how you'd arrange them in a timeline.
And then, there's the wars. Anyone who studies Indian history will quickly realize that Gandhi is an extreme anomaly. In southern India, it was a matter of pride for a king to die in battle. Imagine a culture where the rulers have cultural incentives to be suicidally belligerent (with War Elephants!!!). Now imagine a world where that is the cultural norm for over a thousand years. These rulers were warriors and the literature that they encouraged were mostly poets who wrote verses praising various military exploits. Several of these kingdoms emerge and disappear all the time - and they all chose different languages as the court language, several of them invented their own alphabets (looking at you Pallavas), they all straight up lied in several records. It's a lifetime's task to sort out 300 years of history for an area half the size of Germany.
Then, to make matters worse, almost all historical artifacts from south India were removed from the temples and forts that they have been found and made their way to various collectors and museums in Britan during the Britsh Raj. If you want to study south Indian history, a trip to a museum in London will give you a lot more than walking around endlessly in South India.
Then there's the lack of funding. It's absolutely embarrassing how little the various historians in India earn. Lately, I've been finding more books by historians in America (and even Japan) than those written by people in India.
Then you have the frauds like Sanjeev Sanyal who destroy history by mixing up well established history and his own opinions on history and using the authenticity of the accepted history to add credibility to his baseless opinions.
Studying Indian history is hard.
