GTB Nagar, formerly Koliwada, is a neighborhood in Sion East, Mumbai, named after Guru Tegh Bahadur Ji. Originally home to the Koli community, it later became a settlement for Sikh and Hindu refugees after the Partition. The area is well-connected via the GTB Nagar railway station and major roads, ensuring easy access to other parts of Mumbai. It offers key amenities, including educational institutions, hospitals, shopping centers, and recreational spaces. The locality has a rich cultural heritage with prominent gurdwaras and temples. With diverse housing options and ongoing infrastructure developments, GTB Nagar remains a desirable residential and investment destination.