Ha ha Amith your itenary is Goa Goa & Goa....
So you have planned only to Shirdi is it.
Because you could have done tryambhakeshwar.
And i think, when i did to Shirdi, i went through Pune-Hadapsar Bridge-then Ahmadnagar Highway.
Btw i guess you have a friend in Pune who can guide you while at Pune.
And from Pune via Sangamner, you will be reaching Shirdi.
And Bangalore - Shirdi is exactly 1100 kms and not 900 kms.
Pune-Goa:
And to Goa there are 2 ways, while going to Goa from Pune, you will we all along GQ, and take a deviation from Belgaum.
Which part of Goa, you are keen to reach, because to North Goa you can go via Londa.
To South Goa you will be going all along NH4A , and reach Canacona-Ponda-Panjim.
Other option is via Hubli bypass via Yellapur.
Though this route was bit long we enjoyed scenic drive all through Kirwati forest, and roads were superb.
Goa-Bangalore:
You can follow this route, while returning from Goa-Bangalore.
One advantage while coming from this route is you can do Jog falls too.
And join bangalore again via Kirwati-Yellapur forest.
http://www.theautomotiveindia.com/f...lore-hubli-yellapur-ankola-karwar-panjim.html
Enroute jog falls, while returning from Goa.
Route to Jog falls :
http://www.theautomotiveindia.com/f...578-trip-jog-falls-karnataka-2.html#post91036