Chaina Karmakar, mother of Rajib Karmakar, sits beside the hospital bed of her son with a worried look. Rajib, a first year student of Mohammadpur Central College, is undergoing treatment at Dhaka Medical College and Hospital’s burn unit after being injured in a petrol bomb attack on a bus in which he was travelling at Kaliakoir's Baroipara on Tuesday night during indefinite countrywide blockade. Photo: asaduzzaman pramanik/ bdnews24.com Chaina Karmakar, mother of Rajib Karmakar, sits beside the hospital bed of her son with a worried look. Rajib, a first year student of Mohammadpur Central College, is undergoing treatment at Dhaka Medical College and Hospital’s burn unit after being injured in a petrol bomb attack on a bus in which he was travelling at Kaliakoir's Baroipara on Tuesday night during indefinite countrywide blockade. Photo: asaduzzaman pramanik/ bdnews24.com