The propaganda by Hindutva groups often pushes the narrative that Muslims did nothing expect looting and killing.
Prior to Muslims for almost 1000 years India was divided into several nations fighting and killing each other.
Under Muslim rule India was the richest country amounting to almost 27% of world GDP, Muslims united this nation into one entity, gave it an identity. Prior to Muslims for almost 1000 years India was divided into several nations fighting each other. Muslims gave most beautiful architectural buildings of the world such as the Taj Mahal which is why we see many hinudtva nationalists want to destroy Taj Mahal https://www.japantimes.co.jp/opinion/2017/11/21/commentary/world-commentary/hindu-nationalists-lay-siege-taj-mahal
Muslims gave education system, especially prior to Muslims there was no history recording expect stories. While half the world in 11th to 13th century was being plundered, burnt, raped, destroyed by Mongols including Muslim lands, it was Muslims who fought, sacrificed their lives and protected India from the savage Mongols.
This in itself is a great service to India. Today the radical and fanatic Hindutva fanatics don’t remember the brutal role of British which plundered India for 200 years and reduced GDP from 27% of India to less than 4%. British policies killed over 4 million Indians. It is their legacy of ‘divide and rule’ which BJP is following today.