Telephone exchange , telecom bureau , post office , super bazar are also housed in the basement . टेलीफोन एक्सचेंज , टेलीकॉम ब्यूरो , डाकघर आदि भी इसी निम्नतल में हैं .
परिभाषा
a workplace that serves as a telecommunications facility where lines from telephones can be connected together to permit communication पर्याय: central, exchange,
मोबाइल