Holding Sepetember Future Series To October, Is It Possible?

General
1

Suppose if I have Future Stock of SEPTEMBER, but I dont want to sell it on 25th SEPTEMBER, rather than hold the stock to OCTOBER series, can I hold the stock or I must have to surrender the SEPTEMBER future stock on 25th SEPTEMBER.

2

All Futures expire on expiry day. If you hold September Expiry Futures it will automatically expire on 25th Sep, You cannot hold it further. This is what I know.

3

You can do what is called a rollover. Explained here