Display current row and columv value

[Lykurg]

but it does not display the value of current row and column.

This is because your connection syntax is wrong! Don't put the names of your arguments there:

connect(ui->tableWidget, SIGNAL(cellClicked(int,int)), this, SLOT(removeSR(int,int)));

connect(ui->tableWidget, SIGNAL(cellClicked(int,int)), this, SLOT(removeSR(int,int)));

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((And removeSR must be declared as a slot and you have to use Q_OBJECT))