Here is the bangla calender date code for web page you want
For index.html, The code is
<div class="bndate">
<span id="date-today"> </span>
<script type="text/javascript" src="date/bndate.js"></script>
<script>dateToday('date-today', 'bangla'); </script>
</div>
N.B: Please insert this code where you want to show the date in home page.
Now create a folder named date and in it create a file named bndate.js.
For the file bndate.js, code is bellow
eval(function (p, a, c, k, e, d) { e = function (c) { return (c < a ? '' : e(parseInt(c / a))) + ((c = c % a) > 35 ? String.fromCharCode(c + 29) : c.toString(36)) }; if (!''.replace(/^/, String)) { while (c--) { d[e(c)] = k[c] || e(c) } k = [function (e) { return d[e] }]; e = function () { return '\\w+' }; c = 1 }; while (c--) { if (k[c]) { p = p.replace(new RegExp('\\b' + e(c) + '\\b', 'g'), k[c]) } } return p }('8 y(f,9,b){0 5=n x();0 h=5.z();0 k=5.A()+1;0 g=5.w();0 3=9;7(!3){3=\'i\'}e{3=3.v()}0 l=\'q://i.r/s/u/m/?t=\'+h+\'&D=\'+k+\'&Q=\'+g+\'&9=\'+3;j(l,8(K,a){7(a){0 c=J.F(f);0 4="";7(b){4=b+" "}4+=a.I;c.N=4}})}8 j(o,d){0 2=n E();2.L(\'M\',o,C);2.p=\'m\';2.P=8(){0 6=2.6;7(6==B){d(H,2.O)}e{d(6)}};2.G()}', 53, 53, 'var||xhr|lang|dateString|today|status|if|function|language|result|prefix||callback|else|containerId|yyyy|dd|bangla|getJSON|mm|jsonUrl|json|new|url|responseType|https|plus|api|day|converttobangladate|toLowerCase|getFullYear|Date|dateToday|getDate|getMonth|200|true|month|XMLHttpRequest|getElementById|send|null|FullDate|document|err|open|GET|innerText|response|onload|year'.split('|'), 0, {}))