Israel already helped us in Tamilnadu seawater desalination project near chennai. Please check the below link about that project
https://en.wikipedia.org/wiki/Nemmeli_Seawater_Desalination_Plant
Good development and there are many things DRDO Developed that are well recognized for example "Lukoskin" drug for one type of skin disease. I don't know why they didn't concentrate in defense product like they do in other things.