<p>The present invention provides novel dioxalate salt of lapatinib, process for its preparation and pharmaceutical compositions comprising it. The present invention also provides novel monobesylate salt of lapatinib, process for its preparation and pharmaceutical compositions comprising it. The present invention further provides a process for the preparation of monohydrate form of lapatinib ditosylate. The present invention further provides a process for the preparation of anhydrous form of lapatinib ditosylate.</p>
