Hi SrinivasaRao,

Loading a record can be accomplished entirely in markup using lightning:recordForm. If you need a custom layout, use lightning:recordViewForm. If you need more customization than the form-based components allow for viewing record data, use force:recordData.

Sample code for loading a record:

COMPONENT:

<aura:component implements="flexipage:availableForRecordHome, force:lightningQuickActionWithoutHeader, force:hasRecordId">

    <aura:attribute name="record" type="Object"/>
    <aura:attribute name="simpleRecord" type="Object"/>
    <aura:attribute name="recordError" type="String"/>

    <force:recordData aura:id="recordLoader"
      recordId="{!v.recordId}"
      targetFields="{!v.simpleRecord}"
      targetError="{!v.recordError}"
      recordUpdated="{!c.handleRecordUpdated}"
      />

    <!-- Display a lightning card with details about the record -->
    <div class="Record Details"> 
    <lightning:card iconName="standard:account" title="{!v.simpleRecord.Name}" >
        <div class="slds-p-horizontal--small">
            <p class="slds-text-heading--small">
                <lightning:formattedText title="Billing City" value="{!v.simpleRecord.BillingCity}" /></p>
            <p class="slds-text-heading--small">
                <lightning:formattedText title="Billing State" value="{!v.simpleRecord.BillingState}" /></p>
        </div>
    </lightning:card>
    </div>

    <!-- Display Lightning Data Service errors, if any -->
    <aura:if isTrue="{!not(empty(v.recordError))}">
        <div class="recordError">
            {!v.recordError}</div>
    </aura:if>
</aura:component>

CONTROLLER:
({
    handleRecordUpdated: function(component, event, helper) {
        var eventParams = event.getParams();
        if(eventParams.changeType === "LOADED") {
           // record is loaded (render other component which needs record data value)
            console.log("Record is loaded successfully.");
            console.log("You loaded a record in " + 
                        component.get("v.simpleRecord.Industry"));
        } else if(eventParams.changeType === "CHANGED") {
            // record is changed
        } else if(eventParams.changeType === "REMOVED") {
            // record is deleted
        } else if(eventParams.changeType === "ERROR") {
            // there’s an error while loading, saving, or deleting the record
        }
    }
})

   

For more please refer: https://developer.salesforce.com/docs/atlas.en-us.lightning.meta/lightning/data_service_load_record.htm

I hope you find the above solution helpful. If it does, please mark as Best Answer to help others too.

Thanks,
Ajay Dubedi