Taxis are not available but you can find KSRTC buses which goes to Bagalkot via Badami. Badami is around 80 to 85 km from Gadag. Road is in good condition. You can get private taxi which u need to arrange by some local transport dealers.. Who can take per km charge like if you opt Tavera they may charge 10 to 12 rupees / Km plus extra 200 to 300 rupees for driver. He will take you to badami and drop back to Gadag.