If you are looking for an open-source alternative while you search for Ghosh, you might end up with University Physics (Young & Freedman) or Introduction to Electrodynamics (Griffiths). Ghosh sits perfectly between those two in terms of difficulty.
The Holy Grail for Physics Majors: Finding Basudev Ghosh’s Electricity and Magnetism PDF basudev ghosh electricity and magnetism pdf
Sites like ScienceStereo list B. Ghosh among recommended texts for competitive exams like IIT-JAM . Prof Basudev Ghosh - Google Scholar If you are looking for an open-source alternative