How to add values at each marker point in python?

Question

This is my code in python:

import pandas as pd
import numpy as np
from pandas import DataFrame
import matplotlib.pyplot as plt
df=pd.read_csv("d:\DSR-PSAPP\DayWiseAttendance-Report.csv")
color_style=['green', 'cyan', 'yellow', 'red','blue']
df.plot(kind='line', color=color_style,marker='o', markersize=10)
plt.title('Day wise Reporting of PS Attendance and DSR of Peddapalli Dist')
plt.legend(loc=(1.1,.5))
plt.tight_layout()
ticks=df.index.tolist()
plt.xticks(ticks,df.DATE)
plt.xlabel('Days')
plt.ylabel("'No.of GramPanchayat's")
plt.show()

I successfully running and getting image of my result. But I need value at every marker point . Please suggest me how to get values from data source i.e. .csv file and place same values at each marker point according to position.