KSHETRAS

How many ‘vanas’ (forests) constitute the Brindavan?

12 Forests.
They are:
1) Atalvan 2) Kevaarivan 3) Biharvan 4) Gochaaranvan
5) Kaaliyadamanvan 6) Gopalvan 7) Nikunjavan 8) Nidhuvan
9) Radhavan 10) Jhulanavan 11) Gahvaravan 12) Pappadvan

Please tell me about the greatness of Nupura Ganga in Azhagar Temple in Madurai. Is it equivalent to the Ganges?

Yes it is equivalent to the Ganges and that holy place is very much suited to perform Tapas.