hello,

It usually starts from january and ends in March. for year 2019, the last date was march 31,2019. It will be nearly same for the coming year too. There might be some day fluctuation but the session will be same.

You can keep updating yourself and look out for release of any details or any notice.

If they opens the portal for form filling then you will get to know. So keep on checking two times a day.

Hope it helps!