Worst politics play which ruined my career - Business Manager HSBC Employee Review

I worked with HSBC, Bengaluru in their GPB team. In my tenure of one year there, the kind of emotional torture I went through because how the managers, who favoured one particular employee and pushed her up and taking not just my job but also teaming up against me whilst not just threatening me but also defaming me publicly, eventually they crossed all their limits and made me quit the company.