Hii Aspirant,

If you are asking about Maharastra State Board Of Technical Education (MSBTE) ,through which you get admission for diploma courses then exact dates haven't been released officially yet but the councelling would be done around week 4 of August.

For more details keep checking their official site where they would release the dates .

And also you can go through the link for more information about MSBTE :

https://engineering.careers360.com/articles/maharashtra-polytechnic-admission/amp#aoh=15960103767545&amp_ct=1596010378147&csi=1&referrer=https%3A%2F%2Fwww.google.com&amp_tf=From%20%251%24s

Hope my answer helps