Yup. Maruti Suzuki recommends 28 Psi. Remember to keep it in check and avoid under or over inflating the tyres. There’s a tyre pressure placard stuck on the side of body on driver’s door. It has all the relevant information about it. Same thing is there in ownership manual also.
guys, on my alto its given in the placard to fill 30PSi and i always do the same. and my car is not on full load anytime. a max of 3 passengers at a time. that's all. so any problem if i continue on this?