nav {
  background-color: #229a44;
}

a.navbar-brand {
  display: contents;
}

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.6.3/css/all.css" integrity="sha384-UHRtZLI+pbxtHCWp1t77Bi1L4ZtiqrqD80Kn4Z8NTSRyMA2Fd33n5dQ8lWUE00s/" crossorigin="anonymous" />

<nav class="navbar navbar-expand-lg navbar-dark custom-bg-primary text-white fixed-top mb-3 py-2">
  <div class="container">
    <a class="navbar-brand" href="{% url 'job-list' %}">
      <img src="https://i.stack.imgur.com/Jqd4Z.png" alt="Sirf Sarkari Naukri" height="25%" width="25%">
      <!--
    <img src="https://www.akberiqbal.com/favicon.ico" alt="Sirf Sarkari Naukri" height="25%" width="25%">
    -->

    </a>
    <!-- <a class="navbar-brand" href="{% url 'job-list' %}">Sirf Sarkari Naukri</a> -->
    <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
      <i class="fas fa-thumbs-up"></i>
    </button>
    <div class="collapse navbar-collapse" id="navbarResponsive">
      <ul class="navbar-nav ml-auto">
        <li class="nav-item dropdown">
          <a class="nav-link dropdown-toggle py-0" href="#" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">SARKARI JOBS</a>
          <div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
            <a class="dropdown-item" href="#">BY COMPANY</a>
            <hr />
            <a class="dropdown-item" href="#">BY QUALIFICATION</a>
            <a class="dropdown-item" href="#">BY PROFESSION</a>
            <hr />
            <a class="dropdown-item" href="#">BY STATE</a>
            <a class="dropdown-item" href="#">BY TOP CITIES</a>
          </div>
        </li>
      </ul>
    </div>
  </div>
</nav>