You can start with Wikipedia[1]. I’ve read more then a few books over the years — I’ll find some for you.
[1] I know Wikipedia is not the best source, but it should give you some idea of what I am talking about. Here are some links:
https://en.m.wikipedia.org/wiki/Indian_campaign_of_Ahmad_Sha...
https://en.m.wikipedia.org/wiki/Nader_Shah%27s_invasion_of_t...
https://en.m.wikipedia.org/wiki/Mahmud_of_Ghazni#Ghaznavid_c...