[someonenice]

So in Indian context respect is shown to the elders by means of different suffix (brother, sister, uncle, grandpa).

It could be either brother (bhaiyya, anna, chettan ) or Sister (deedi, akka, chechi .. ) if the person is elder to you but not too older than you. So if you are in 20's , and shopkeeper (who is Raju) is in his 40s, you might call him Raju bhaiyya (or Raju anna in Tamil, Raju chettan in Malayalam).

If there is a visible One generation gap, then Uncle or Auntie is used.

And if there is a visible two generation gap, then grandpa and grandma is also suffixed to call them (but this is not very common.. and sometimes could be taken as insult)

And the elders might call you Son or Daughter (beta, beti ..) in a similar way.

And you could be complete strangers.