How to insert bulk (20,000) json data post in ajax jquery

I need Bulk (20,000 Records) json data to post Controller.

I Get This Type Of Error

Error during serialization or deserialization using the JSON JavaScriptSerializer. The length of the string exceeds the value set on the maxJsonLength property. Parameter name: input

type: ‘POST’,
url: baseurl + ‘Masters/AuthMapping/MultiBpsave’,
dataType: “json”,
data: JSON.stringify(BPR[0]),
contentType: “application/json; charset=utf-8”,
async: false,
success: function (data) {

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