Hi Mohit
Bariums are banned in a lot of places because of the Barium thickner,
We would not ever recomend or use ourselves,
Calcium Sulfonate thickner is superior, and non toxic, > 400 cSt @ 40°C base oil,
Exon make good one,
WR2500
SKF also have the same I think,
These greases can handle their own weight in water and still provide reasonable lubricant, down side is they cost a bit more,
Ensure gloves and PPE are used if you have to persist with the Barium
Regards Rob S