Start your day with Jama Masjid, after that go to Chandani Chowk and see the mustle and bustle of Old Delhi. Next you can go to places like Humayuns tomb,Red fort or Lotas temple. Spend your evening in Paharganj or Hauz khas.
Have your dinner and go for a walk at India Gate. If you want you can also go to Bangla Sahib after India Gate.
1.Start you day with Humayun Tomb in the morning as it gets crowdy after 10 am then 2.Visit the Rashtra pati Bhavan followed by Redfort, park your car or take a auto to Meena bazar/Jama masjid 3. Try the Mughlai cuisines at Karims near Jama masjid 4.Visit the Jama masjid by 3 pm,do not forget to climb the minar 5.Head towards connough place there u will find two good places (Jantar Mantar and Ugrasen Ki bowli( which will finish by 6 pm)
6.Have some chill time at the best cafes situated at Cannough place till 9 pm