IOS How to underline text in UIlabel

You may subclass from UILabel and override drawRect method
- (void)drawRect:(CGRect)rect {
    CGContextRef ctx = UIGraphicsGetCurrentContext();
    CGContextSetRGBStrokeColor(ctx, 207.0f/255.0f, 91.0f/255.0f, 44.0f/255.0f, 1.0f); 
    CGContextSetLineWidth(ctx, 1.0f);
    CGContextMoveToPoint(ctx, 0, self.bounds.size.height - 1);
    CGContextAddLineToPoint(ctx, self.bounds.size.width, self.bounds.size.height - 1);
    CGContextStrokePath(ctx);
    [super drawRect:rect];  
}

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