Hello aspirant, both of them are good. But has slight variation from each other. You can choose any of these two. Preferably Governance Polytechnic Mumbai would be better. Now you have chance choose so choose wisely. 

You can go through below links for more details. 

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

https://www.careers360.com/colleges/government-polytechnic-pune/amp

All the Best.