Hi Pankaj, Some of the best places to not miss when you are in Jaipur include Hawa Mahal, Amber Fort, City Palace, Albert Hall Museum, Bapu Bazaar, Birla Temple and Jal Mahal.
I would suggest you to indulge in local street food if you are planning a budget trip to Jaipur. Chawla' and Nand's, Rawat Mishthan Bhandar, Gulab Ji Chaiwala, Masala Chowk and Pandit's will treat you with delicious and spicy food. You can plan your lunch and dinner at Jaipur Adda, RJ 14, Taru Veda or Handi. Also check out our Jaipur travel guide for a piece of detailed information about places to visit, places to eat, travel cost and more.
https://www.tripoto.com/travel-guide/jaipur Blogs that help.
Places to visit and itinerary: https://www.tripoto.com/trip/when-in-jaipur-eat-shop-repeat-5a9c3b101da04
Places to eat: https://www.tripoto.com/trip/food-places-to-look-out-for-in-jaipur-59c6d727b96cc
Head to Tapri for a quick bite. It is an excellent place to hangout with friends. There are many other restaurants you can head to. Bar Palladio is a very nice place.