diff --git a/JS/HackerrankModAutomation.js b/JS/HackerrankModAutomation.js
new file mode 100644
index 0000000..f5bb7cd
--- /dev/null
+++ b/JS/HackerrankModAutomation.js
@@ -0,0 +1,128 @@
+// node automation.js --url=https://www.hackerrank.com --config=config.json
+// npm init -y
+// npm install minimist
+// npm install puppeteer -g
+
+/*
+config.json format 
+{
+  "userid": "youruserid",
+  "password": "yourpass",
+  "moderators": ["abc","efg"]
+}
+
+*/
+
+let minimist = require("minimist");
+let puppeteer = require("puppeteer");
+let fs = require("fs");
+
+let args = minimist(process.argv);
+
+let configJSON = fs.readFileSync(args.config, "utf-8");
+let configJSO = JSON.parse(configJSON);
+
+let userid = configJSO.userid;
+let password = configJSO.password;
+let moderator = configJSO.moderator;
+
+async function run(){
+    let browser = await puppeteer.launch({
+        headless: false,
+        defaultViewport: null,
+        args: ['--start-maximized']
+    });
+    let pages = await browser.pages();
+    let page = pages[0];
+    await page.goto(args.url);
+    
+    await page.waitForSelector("a[href='https://www.hackerrank.com/access-account/']");
+    await page.click("a[href='https://www.hackerrank.com/access-account/']");
+
+    await page.waitForSelector(`a[href="https://www.hackerrank.com/login"]`);
+    await page.click(`a[href="https://www.hackerrank.com/login"]`);
+
+    // await page.waitForNavigation({ waitUntil: 'networkidle2' });
+
+    await page.waitForSelector(`input[name="username"]`);
+    await page.click(`input[name="username"]`);
+    await page.keyboard.type(userid, {
+        delay:30
+    });
+    
+    await page.waitForSelector(`input[name="password"]`);
+    await page.click(`input[name="password"]`);
+    await page.keyboard.type(password, {
+        delay: 30
+    });
+
+    await page.waitForSelector(`button[data-analytics="LoginPassword"]`);
+    
+    await page.click(`button[data-analytics="LoginPassword"]`);    
+    
+    await page.waitForSelector(`a[href="/contests"]`)
+    await page.click(`a[href="/contests"]`)
+
+    await page.waitForSelector(`a[href="/administration/contests/"]`);
+    await page.click(`a[href="/administration/contests/"]`);
+
+    await page.waitForSelector(`a[data-attr1="Last"]`);
+    // console.log("done");
+    let numPages = await page.$eval(`a[data-attr1="Last"]`, function (atag) {
+        let totPages = parseInt(atag.getAttribute("data-page"));
+        return totPages;
+    });
+    console.log(numPages);
+    
+    for(let i = 1; i<=numPages; i++){
+        await handleAllPagesOfContest(page,browser);
+        if(i!= numPages){
+            await page.waitForSelector("a[data-attr1='Right']");
+            await page.click("a[data-attr1='Right']");
+        }
+        
+    }
+
+    async function handleAllPagesOfContest(page, browser){
+        await page.waitForSelector("a.backbone.block-center");
+        let curls = await page.$$eval("a.backbone.block-center",function(atags){
+            let urls = [];
+            for(let i = 0; i<atags.length; i++){
+                let url = atags[i].getAttribute("href");
+                urls.push(url);
+            }
+            return urls;
+        });
+        console.log(curls);
+        await page.waitFor(1000);
+        for(let i = 0; i<curls.length; i++){
+            let newTab = await browser.newPage();
+            await saveModInContest(newTab, args.url+curls[i], configJSO.moderator);
+            await newTab.close();
+            await page.waitFor(1000);
+        }
+
+        
+
+    }
+    // function to add all the moderators available
+    async function saveModInContest(newTab, curl, mod){
+        await newTab.goto(curl);
+        await newTab.waitFor(3000);
+        await newTab.waitForSelector(`li[data-tab="moderators"]`);
+        await newTab.click(`li[data-tab="moderators"]`);
+        for(let i = 0; i<mod.length; i++){
+        await newTab.waitForSelector(`input#moderator`);
+        await newTab.click(`input#moderator`);
+        await newTab.keyboard.type(mod[i],{
+            delay:30
+        });
+        await newTab.waitFor(1100);
+        await newTab.click(`button.moderator-save`);
+        await newTab.waitFor(500);
+        }
+    }
+
+        await browser.close();
+  }
+  run();