is Aquaguard RO+ UV+UF+MTDS water safe for my 18 months baby ? or i should still boil that water ?

A. its safe . no need to boil. Milk- restrict to 500 ml including dairy products. give 3 meals which are substantial including rice, roti , basically cereals, with veggies , dals so proteins are also covered. then snacks should be again healthy comprising of fruits, variety of recipes. easy to munch on. try finger foods too.