The menswear designer, who is one of the favourites of Bollywood hunks will showcase his collection titled "Between the Lines", carrying forward his core styles.
The collection surfaces inspiration from racer stripes, pin tucks and pleats with fun colour palette including shades of vanilla, oxblood, wine, cobalt, champagne and forest green.
Fabrics like linens, muslins and silks will make the canvas for the solid and embroidered garments which are traditional with a contemporary twist.
Sidharth, 31, who was last seen in box office hit "Kapoor & Sons" co-starring Alia Bhatt and Fawad Khan, has previously walked for designer Manish Malhotra.
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Many Bollywood celebrities like Amitabh Bachchan, Salman Khan, Akshay Kumar, Anil Kapoor, Ranbir Kapoor, Abhishek Bachchan, Shahid Kapoor, Prateik Babbar, Abhay Deol and Arjun Kapoor have sported his creations on various occasions.
Kunal, who shot to fame by becoming the youngest designer to feature in Lakme India Fashion Week 2006, designed Shahid's wedding outfit.
Apart from Sidharth, day four at LFW will also see Shraddha Kapoor walking for Masaba and Lisa Haydon turning Monisha Jaising's showstopper.
"Fan" actress Waluscha De Sousa will be the face of debutant designer Saroj Jalan's collection.