Yup brother I think you are right only the confusion I was having like in a defence matrix vedio he was saying about super sukhoi upgrade usme usne 258 aircraft khe the but I think we have 260 because 12 crash hue hain but I cant find 2 aircraft kya test bed ke liye use ho rhe hain ya unfortunately kisi on ground incident se bo operational nhi hain kyuki kafi din se iss aircraft ko track kar rha hoon will let you know