Hello,

Yes you can apply as the eligibility criteria for admission in Government Polytechnic, Mumbai is that the candidate should be an Indian National and should have passed the SSC (Std.X) examination of Maharashtra State Board of Secondary Education or its equivalent, with subjects Maths/Mathematics, General Science and English with minimum 35% aggregate marks.  Please click the below link to know more about this college.

https://www.careers360.com/colleges/government-polytechnic-mumbai

Yes you can apply for diploma in government Polytechnic colleges in Mumbai after completing 10th..

All the best........