It seems you're referring to the 2000 Bollywood film "Mohabbatein" (which indeed released in 2000).
"Pairon Mein Bandhan Hai" brought a festive, rebellious energy.
The central conflict arises when Raj Aryan Malhotra (played by Shah Rukh Khan), a new music teacher, joins the school to challenge Shankar’s rigid opposition to romance. The film explores:
"Humko Humise Chura Lo" became the ultimate anthem for lovers.
The movie primarily focuses on the love story of Raj Malhotra (Shah Rukh Khan) and Aisha (Kareena Kapoor). Raj, a free-spirited individual, falls in love with Aisha, a beautiful and elegant woman. However, their love is forbidden by Aisha's father, who disapproves of Raj's non-conformist attitude and wants Aisha to marry a man of his choice.