किस शहर को प्रसिद्ध रूप से 'भारत की सिलिकॉन वैली' के रूप नाम से जाना जाता है?

Which city is known as the 'Silk City' of West Bengal?

Which city is widely known as the 'Silicon Valley of India' due to its status as the nation's leading information technology (IT) exporter?