Am getting wrong index path.row from tableview

TableView will not necessarily create all your table rows at once.
It will fill the screen...
...then on scrolling down, more table rows are created, as required.

Have you tested this behavior?

Tip: On the Forum, use "Paste and Match Style" with a code block, to avoid all the blank lines.

That's absolutely normal.

cellForRowAt is for display ; it is called on visible cells only (and a few more to anticipate scroll). Scroll the tableView and you will see.

Hence when you print, you only print those cells for which it is called. If you want to print all, use dataSource (devices array).

func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {

        return self.devices?.count ?? 0
    }

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

        print(devices?.count)
        print("INDEXPATH :-----    \(indexPath.row)")

        let cell = tableView.dequeueReusableCell(withIdentifier: cellId, for: indexPath);

        if let device = self.devices?[indexPath.row]{
            cell.textLabel?.text = device.name
//            print("\(count)   :-   Device :-    \(device)   Index:------\(indexPath.row)")
            count += 1
        }

        return cell
    }

    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {

        tableView.deselectRow(at: indexPath, animated: false)

        if let block = self.deviceDidSelectBlock{

            if let devices = self.devices, devices.count > 0 {
                let device = devices[indexPath.row]
                block(device)
            }

        }

        self.dismiss(animated: false) {
        }

    }

    func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {

        return 50
    }

    func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldReceive touch: UITouch) -> Bool {

        let loc = touch.location(in: self.view)

        if loc.x < self.deviceTable.frame.maxX && loc.x > self.deviceTable.frame.minX && loc.y < self.deviceTable.frame.maxY && loc.y > self.deviceTable.frame.minY {
            return false
        } else {
            return true
        }

    }

Note: in Swift, you don't need to end lines with semi colon as in ObjC. Unless you want to write multiple statements on the same line.