Complex sentence: Lyricist Sameer (lyricist) was repeated too, but for just one song ("Kuchi Kuchi") and new lyricist Deepak Chowdhary wrote the remaining songs.
Split into simpler sentences: Lyricist Sameer (lyricist) was also re-hired, but for only one song ("Kuchi Kuchi"). New lyricist Deepak Chowdhary wrote the remaining songs.