If you post the Photo of the stylus, replacement can be suggested Contact Needle Doctor for all models.
In case you want to replace the Cartridge in full I suggest the Audio-Technica AT-91 model it is available in India. Pl search this forum.
My model is Fisher MT-913. I also have Fisher Equalizer EQ-914, Laser Disk CD CDV LD Player CLD-S370, Fisher DAC-503 5 Disc CD Changer and many more Hi-Fi equipments with Yamaha Rx-990 amp.