Bilawal (23), who joined his father, President Asif Ali Zardari, on a day-long private visit to India, wrote on the micro-blogging site: "It is such a shame (that two) countries (where) such large segments of our population live in desperate poverty must spend so much on weapons". Bilawal expressed his views on nuclear weapons, saying the atomic arsenal of both countries were adequate to "destroy each other multiple times over".
He added, "Surely just once would (be one) time too many". The two countries should instead invest in education, healthcare and business so that they could trade, "teach each other" and "heal each other", he wrote.
Earlier in the day, Bilawal announced his arrival in India by tweeting: "(As-salam-o-alaikum India, Peace be with you. I have just landed in Delhi. 1st ever visit".
He also recalled his slain mother, former premier Benazir Bhutto's quote that "there is a little bit of India in every Pakistani and a little bit of Pakistan in every Indian".
Following a meeting between President Zardari and Prime Minister Manmohan Singh over lunch, Bilawal tweeted that his father and he had enjoyed the lunch "with Rahul Gandhi and PM Singh. Lovely meal. Much to learn from each other".
After a visit to the famous Sufi shrine of Khwaja Moinuddin Chishti at Ajmer, Bilawal wrote that he had offered a "special prayer for our brave soldiers who lost their lives in the Siachen avalanche tragedy".