Hi Vidhi its summer so Dehydration is possible, is the baby on breastfeeding? If yes please increase it. If formula also increase it, till 1 year breast milk or formula milk will be the main source of nutrition so dont reduce it. Avoid juices it will just fill tummy.

He has khichdi & orange juice

What if it has foul smell?

Normally urine will smell if you are giving fruits to your babies foods rich in uric acid if you are giving Dal water 3 times a day 4 times day it is going to affect the way your urine smells but the urine should not be very foul smell or very yellow