which bus i need to take if i want to go to an indian restaurant in jinan?

Well, as far as I know, this city doesn't have many Indian restaurants.
I only know one named as 'Mengmai Professional Curry'. It has delicious indian food and wins popularity among local people.

You can go to try it. It's located at 4th Floor, Wanda Plaza, Jing er Road, Shizhong District.
About the transportation, you can take public bus no.3, 5, 18, 43, 101, 103, 104, k50, k51 or k59 to Peoples Market Station. This bus stop is about 200 yards away from that indian restaurant.