The statement is True. Trigonal pyramidal molecules are generally polar due to their geometry and the presence of lone pairs of electrons on the central atom.
In a trigonal pyramidal shape, the three bonded atoms create a base, while the lone pair occupies the apex, causing an asymmetrical distribution of charge. This shape leads to a dipole moment since the electronegativities of the bonded atoms can differ, and the lone pair’s influence pulls electron density towards the central atom. As a result, the molecule does not possess a symmetrical charge distribution, making it polar.