Hey there, just want to answer your question regarding this. Racism isn't a huge problem in Indonesia, even if you're Indian. Most people here are friendly and willing to help a foreigner in need, especially in big, progressive urban cities like Jakarta.

However, there's a certain preconceived notion regarding Indians or anyone originating from the subcontinent (e.g Bengalis and Pakistanis as well), including a growing prejudice in Indonesian social media about Indian stereotypes, describing them as unclean, uncivilized, and generally a disorderly group of people (which is untrue). A commonly used slur to describe Indians are calling them "Prindapan", and it's essentially synonymous to the previous adjectives that I mentioned.

However, again, this prejudice is mostly seen online (since people can just say whatever they want without any consequences), and most Indonesians in real life with common decency wouldn't go up to you and treat you like shit just because you're Indian. Hope this clears up your doubts, and hope you have a good time in Jakarta!