The BEL's parameters can be found here: https://www.bel-india.com/BELWebNew/UploadedFiles/Products/Plastic_package.pdf
(see section on PNP Driver/Output Transistor)
Knowing its parameters you can replace it with several equivalents, for example: BC327, 2N5401, 2N2905, ..
(possible difference in packages) ..
Regards,
IanP