State-run telecom operator BSNL today said it will offer free installation and high-speed Internet usage for first 15 days for customers who apply for its landline-based broadband connection by this month-end. BSNL in a statement said it will offer free installation, broadband usage for first 15 days at speeds up to 2 mbps, music and video on demand, games on demand and free web conferencing services for two months for customers who will apply for new connection up to 31st of this month.