In Delhi, a pleasant day provided the perfect backdrop for the young and old to display their affection for their loved ones.
The national capital saw the day pass off peacefully as young couples were seen thronging public places, coffee houses and themed restaurants decked up with heart-shaped flowers and red and pink balloons.
E-commerce majors, pizza chains, restaurants spas and salons also offered special discounts on the occasion.
In Hyderabad, several Bajrang Dal and Vishwa Hindu Parishad (VHP) activists were taken into custody from different parts of the city as they held protests against Valentine's Day celebrations.
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Describing Valentine's Day as against Islam and its culture, All India Muslim Personal Law Board (AIMPLB) members urged the Muslim men and women not to celebrate it.
Meanwhile, students organisations at Osmania University in Hyderabad under the banner of 'Indian Lovers Unity' (ILU) decided to celebrate Valentine's Day by holding an open meeting in front of Arts College on the varsity campus.
In Mumbai, Bollywood celebrities including Karan Johar, Arjun Rampal, Madhuri Dixit Nene, Shraddha Kapoor and Aditi Rao Hydari wished their fans love on Valentine's Day.
A new short film "Queen of Hearts", which defies the stereotypical interpretation of Valentine's Day, was also released.