March is an optimal time to visit Delhi and North India. It will give you great opportunity to combine scientific milieu with holiday and sight seeing. Here are some suggestions you could consider either pre-conference or post-conference depending on the time you have at hands.
Delhi is divided into two major geographic parts: Old Delhi and New Delhi.
Historical monuments you can visit in Old Delhi: Red Fort built by Moughal Emperor Shahjahan between 1636 & 1658; Jama Masjid, the largest Mosque in India, Raj Ghat - the memorial of Mahatma Gandhi, the father of Independent Indian Nation. Close to Raj Ghat are the Memorials of Late Indira Gandhi (Shakti Sthal) and Lala Bahadur Shastri (Vijay Ghat). You can also visit Chandni Chowk, Jain Temple, Gurudwara Sisganj, all opposite red fort.
New Delhi (Central and South Delhi): The historical places one can visit and see include; Birla Mandir, Parliament House, Rashtrapati Bhawan (Residence of President of India), India Gate, Teen Murti House (Residence turned Memorial of India's First prime Minimster Jawahar Lal Nehru, Humanyun's Tomb, Bahai's Lotus temple, Qutab Minar, Indira Gandhi Memorial, 1 Safdarjung Road, New Delhi, National Museum, Cottage Emporium, Connaught Place. There is a huge temple complex in Chattarpur in South Delhi. Old Fort and Dargah of Nizzamuddin are located in New Delhi. Dilli haat famous for ethnic collection of handicraft is located very close to the venue of the conference i.e. AIIMS. Besides historical monuments and memorials, there are modern shopping areas and complexes in New Delhi.
New addition: Akshardham Temple
Other attractions around Delhi You can also take one or more exciting tours to Agra, Jaipur, Amritsar, Varanasi, Gwalior, Jhansi and Khajuraho. You can also chose to go to Himalayas ( Mussorie, Nainital, Jim Corbett Park, Shimla, Kasauli, Kulu and Manali, Chail and last but not the least Kashmir.