alert(JSON.stringify(Attendances.data));
It gives this result:
[{"EmpNTLogin":"Gautam"}]
What I want:
"Gautam"
You don't need to stringify it.
alert(Attendances.data[0].EmpNTLogin);
Attendances.data is an array of JSON objects, that each have an EmpNTLogin property. Attendances.data[0] gets the first JSON object in the array, and .EmpNTLogin gets the value associated with the EmpNTLogin property, in this case "Guatam".