@RestResource(urlMapping='/jde_integration')
global class JdeIntegration {
    @HttpPost
    global static void doPost() {
        String req = RestContext.request.requestBody.toString();
        System.debug('Req: '+req);

        // Data in format 'Sl.no Name Date City 1 Testfile 25.10.2014 Hyderabad'
        // Want to split on whitespace, at most 8 substrings (city might have spaces)
        String[] params = req.split('\s', 8);

        String name = params[5];
        String datt = params[6]; // date is a reserved word!
        String city = params[7];

        System.debug('Got name: '+name+', date: '+datt+', city:'+city);

        // Now you can insert a record, or do whatever you need to
    }
}

$ curl -v -H 'Content-Type: text/plain' -H 'Authorization: Bearer ACCESS_TOKEN'
-d 'Sl.no Name Date City 1 Testfile 25.10.2014 Hyderabad'
https://na1.salesforce.com/services/apexrest/jde_integration

09:14:41.127 (127782275)|USER_DEBUG|[7]|DEBUG|Req: Sl.no Name Date City 1 Testfile 25.10.2014 Hyderabad
09:14:41.139 (139188394)|USER_DEBUG|[17]|DEBUG|Got name: Testfile, date: 25.10.2014, city:Hyderabad