get_text() returns blank value

[Prince_Bhatia]

i am trying to scrape few pages via reading them through csv. This is one of the example web page http://up-rera.in/AgentDetails.aspx?Id=10868

i am trying to scrape name and mobile values.

but whenever i run my code it returns BLANK. i am trying to scrape 360 REALTORS LLP and 9871898000

below is my code:

import requests
from bs4 import BeautifulSoup
import time
import os
import csv

file = {}
final_data = []

def read_file():
    global file
    f = open("Data.csv")
    for line in f.readlines():
        data = line.split(",")
        file[data[0]]= data[1]

def writedata(alldata1, filename):
    with open("./"+filename, "w")as csvfile:
        csvfile = csv.writer(csvfile, delimiter=",")
        csvfile.writerow("")
        for i in range(0, len(alldata1)):
            csvfile.writerow(alldata1[i])

def parse_data():
    global file
    global final_data
    for data_obj in file.keys():
        link = file[data_obj]
        #print(link)
        data = getbyget(link, {})
        soup = BeautifulSoup(data, "html.parser")
        get_details = soup.find_all("div", {"class":"col-sm-12"})[0]
        #print(get_details)
        mobile = get_details.find_all("span", {"id":"ctl00_ContentPlaceHolder1_lblAname"})
        for i in mobile:
            datas = i.text
            print(datas)

    return final_data

def getbyget(url, values):
    res = requests.get(url, data=values)
    data = res.text
    return data

def main():
    read_file()
    datas = parse_data()
    writedata(datas, "UP_DATA.csv")                                                      
main()

i am trying to scrape this webpage from last 24 hours and same output i received. just found out __EVENTTARGET , __EVENTARGUMENT, __VIEWSTATE are all hidden, it there something related this with

i am reading the files correctly , it is returning headings like name, Father's Name, Applicant Type but not there values

Please help