diff --git a/web/api/src/main/java/org/onosproject/rest/resources/ModulationWebResource.java b/web/api/src/main/java/org/onosproject/rest/resources/ModulationWebResource.java
new file mode 100644
index 0000000..4c4829f
--- /dev/null
+++ b/web/api/src/main/java/org/onosproject/rest/resources/ModulationWebResource.java
@@ -0,0 +1,278 @@
+/*
+ * Copyright 2019-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * This Work is contributed by Sterlite Technologies
+ */
+package org.onosproject.rest.resources;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ArrayNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.onosproject.net.Device;
+import org.onosproject.net.Direction;
+import org.onosproject.net.ModulationScheme;
+import org.onosproject.net.PortNumber;
+import org.onosproject.net.behaviour.ModulationConfig;
+import org.onosproject.net.device.DeviceService;
+import org.onosproject.rest.AbstractWebResource;
+import org.slf4j.Logger;
+
+import javax.ws.rs.Consumes;
+import javax.ws.rs.GET;
+import javax.ws.rs.PUT;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.Produces;
+import javax.ws.rs.QueryParam;
+import javax.ws.rs.core.Context;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.UriInfo;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Iterator;
+import java.util.Map;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.onlab.util.Tools.readTreeFromStream;
+import static org.onosproject.net.DeviceId.deviceId;
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * Query and program flow rules.
+ */
+
+@Path("modulation")
+public class ModulationWebResource extends AbstractWebResource {
+
+    private final Logger log = getLogger(getClass());
+    @Context
+    private UriInfo uriInfo;
+
+    private static final String DEVICE_NOT_FOUND = "Device is not found";
+    private static final String APP_ID_NOT_FOUND = "Application Id is not found";
+    private static final String MODULATIONCONFIG_UNSUPPORTED = "Modulation Config is not supported";
+
+    private static final String DEVICES = "modulationConfigDevices";
+    private static final String DEVICE_ID = "deviceId";
+    private static final String DEVICE_IDS = "modulationConfigDeviceIds";
+    private static final String MODULATIONCONFIG_SUPPORTED = "modulationConfigSupported";
+    private static final String TARGET_MODULATION = "targetModulation";
+    private static final String TARGET_BITRATE = "targetBitRate";
+    private static final String JSON_INVALID = "Invalid json input";
+
+    private final ObjectMapper mapper = new ObjectMapper();
+
+    /**
+     * Gets all modulation config devices.
+     * Returns array of all discovered modulation config devices.
+     *
+     * @return 200 OK with a collection of devices supporting modulation
+     */
+    @GET
+    @Produces(MediaType.APPLICATION_JSON)
+    public Response getModulationSupportedDevices() {
+        ObjectNode root = mapper().createObjectNode();
+        ArrayNode deviceIdsNode = root.putArray(DEVICE_IDS);
+
+        Iterable<Device> devices = get(DeviceService.class).getDevices();
+        if (devices != null) {
+            for (Device d : devices) {
+                if (getModulationConfig(d.id().toString()) != null) {
+                    deviceIdsNode.add(d.id().toString());
+                }
+            }
+        }
+
+        return ok(root).build();
+    }
+
+    private ModulationConfig<Object> getModulationConfig(String id) {
+        Device device = get(DeviceService.class).getDevice(deviceId(id));
+        if (device == null) {
+            throw new IllegalArgumentException(DEVICE_NOT_FOUND);
+        }
+        if (device.is(ModulationConfig.class)) {
+            return device.as(ModulationConfig.class);
+        }
+        return null;
+    }
+
+
+    /**
+     * Gets the details of a modulation config device.
+     * Returns the details of the specified modulation config device.
+     *
+     * @param id device identifier
+     * @return 200 OK with a device
+     */
+    @GET
+    @Path("{id}")
+    @Produces(MediaType.APPLICATION_JSON)
+    public Response isModulationSupported(@PathParam("id") String id) {
+        ObjectNode result = mapper.createObjectNode();
+        result.put(MODULATIONCONFIG_SUPPORTED, (getModulationConfig(id) != null) ? true : false);
+        return ok(result).build();
+    }
+
+
+    /**
+     * Returns the supported modulation scheme for specified ports of device.
+     * <p>
+     * ModulationConfigDeviceGetPorts
+     *
+     * @param id     device identifier
+     * @param portId line port identifier
+     * @return 200 OK with a modulationGetResponse.
+     */
+    @GET
+    @Path("{id}/port")
+    @Produces(MediaType.APPLICATION_JSON)
+    public Response getConfigurablePortModulation(@PathParam("id") String id,
+                                                  @QueryParam("port_id") String portId) {
+        ModulationConfig<Object> modulationConfig = getModulationConfig(id);
+        if (modulationConfig == null) {
+            throw new IllegalArgumentException(MODULATIONCONFIG_UNSUPPORTED);
+        }
+
+        ObjectNode result = encode(id, modulationConfig, portId);
+        return ok(result).build();
+    }
+
+
+    /**
+     * Applies the target modulation for the specified device.
+     *
+     * @param stream JSON representation of device, port, component and target
+     *               bitrate info
+     * @return status of the request - CREATED if the JSON is correct,
+     * BAD_REQUEST if the JSON is invalid
+     * ModulationConfigPut
+     */
+    @PUT
+    @Consumes(MediaType.APPLICATION_JSON)
+    public Response setModulationScheme(InputStream stream) {
+        try {
+            ObjectNode jsonTree = readTreeFromStream(mapper(), stream);
+            decode(jsonTree);
+            return Response.ok().build();
+        } catch (IOException e) {
+            throw new IllegalArgumentException(e);
+        }
+    }
+
+    private ObjectNode encode(String deviceId, ModulationConfig<Object> modulationConfig, String portId) {
+        checkNotNull(modulationConfig, "ModulationConfig cannot be null");
+
+        Direction component = Direction.ALL;
+        PortNumber port = PortNumber.portNumber(portId);
+        log.debug("Port Details for port_id : {} is \n {} ", portId, port);
+
+        ModulationScheme modulation = modulationConfig.getModulationScheme(port, component).get();
+        log.debug("Modulation  fetched from driver : " + modulation.name());
+
+        ObjectNode responseNode = mapper.createObjectNode();
+        responseNode.put("deviceId", deviceId);
+        responseNode.put("portId", portId);
+        responseNode.put("modulation", modulation.name());
+
+        return responseNode;
+    }
+
+    public void decode(ObjectNode json) {
+        if (json == null || !json.isObject()) {
+            throw new IllegalArgumentException(JSON_INVALID);
+        }
+
+        JsonNode devicesNode = json.get(DEVICES);
+        if (!devicesNode.isObject()) {
+            throw new IllegalArgumentException(JSON_INVALID);
+        }
+
+        Iterator<Map.Entry<String, JsonNode>> deviceEntries = devicesNode.fields();
+        while (deviceEntries.hasNext()) {
+            Map.Entry<String, JsonNode> deviceEntryNext = deviceEntries.next();
+            String deviceId = deviceEntryNext.getKey();
+            ModulationConfig<Object> modulationConfig = getModulationConfig(deviceId);
+            JsonNode portsNode = deviceEntryNext.getValue();
+            if (!portsNode.isObject()) {
+                throw new IllegalArgumentException(JSON_INVALID);
+            }
+
+            Iterator<Map.Entry<String, JsonNode>> portEntries = portsNode.fields();
+            while (portEntries.hasNext()) {
+                Map.Entry<String, JsonNode> portEntryNext = portEntries.next();
+                PortNumber portNumber = PortNumber.portNumber(portEntryNext.getKey());
+                JsonNode componentsNode = portEntryNext.getValue();
+                Iterator<Map.Entry<String, JsonNode>> componentEntries = componentsNode.fields();
+                while (componentEntries.hasNext()) {
+                    Direction direction = null;
+                    Map.Entry<String, JsonNode> componentEntryNext = componentEntries.next();
+                    try {
+                        direction = Direction.valueOf(componentEntryNext.getKey().toUpperCase());
+                    } catch (IllegalArgumentException e) {
+                        // TODO: Handle other components
+                    }
+
+                    JsonNode bitRateNode = componentEntryNext.getValue();
+                    if (!bitRateNode.isObject()) {
+                        throw new IllegalArgumentException(JSON_INVALID);
+                    }
+                    Long targetBitRate = bitRateNode.get(TARGET_BITRATE).asLong();
+                    if (direction != null) {
+                        modulationConfig.setModulationScheme(portNumber, direction, targetBitRate);
+                    }
+                }
+            }
+        }
+    }
+
+    /**
+     * Sets the modulation for specified device and port.
+     * Returns the details of the specified modulation config device ports.
+     * <p>
+     * ModulationConfigDeviceGetPorts
+     *
+     * @param id        device identifier
+     * @param direction port direction(transmitter or receiver port)
+     * @param portId    port channel
+     * @param bitrate   port bitrate
+     * @return status of the request - CREATED if the JSON is correct,
+     * BAD_REQUEST if the JSON is invalid
+     */
+    @PUT
+    @Path("set-modulation/{id}")
+    @Consumes(MediaType.APPLICATION_JSON)
+    public Response setPortModulation(@PathParam("id") String id,
+                                      @QueryParam("port_id") String portId,
+                                      @QueryParam("direction") String direction,
+                                      @QueryParam("bitrate") long bitrate) {
+
+        ModulationConfig<Object> modulationConfig = getModulationConfig(id);
+        PortNumber portNumber = PortNumber.portNumber(portId);
+        log.info("Port Details for port_id : {} is \n {} ", portId, portNumber);
+        if (direction != null) {
+            Direction component = Direction.valueOf(direction.toUpperCase());
+            modulationConfig.setModulationScheme(portNumber, component, bitrate);
+        } else {
+            log.error("Direction cannot be null");
+            return Response.status(400, "Direction cannot be Null").build();
+        }
+        return Response.ok().build();
+    }
+
+
+}