What according to you is a well planned city? If Proper public transport, buildings, architecture,cleanliness ,traffic ,malls ,shops and well planted trees are what defines well planned cities.
Then here is a list of cities in India that are very well planned
Chandigarh

Hands down the most well planned city in India. It is also know as the wealth city in India. As they have well maintained roads and parking space as well. They have the best bus service undertaken by Chandigarh Transport Undertaking (CTU). All the other public transports like autos as well are available at any point of the day.
They have amazing morden architectural buildings and malls. They have high end stores with latest collection of all the brands available. The concept of the city is based on four major functions: living, working, care of the body spirit and circulation.
Chandigarh’s Capitol Complex was in July 2016 declared by UNESCO as World Heritage at the 40th session of World Heritage Conference held in Istanbul and also In 2016, Chandigarh was declared as the second cleanest city of India under Swachh Bharat Survekshan.
Gandhinagar

The capital of Gujarat which lies on the west bank of the Sabarmati River is also a beautifully planned city like Chandigarh.Gandhinagar is also considered as the “greenest” town in the world. As the place has numerous parks and gardens which makes the place green. This city is very clean as well.
The places has beautiful architecture like Akshardham Mandir ,Mahatma Mandir ,Gift city tower and many more.
Navi Mumbai

Public transport, Roadways, Infrastructure, nature and public utilities are at its best in Mumbai. While all the other cities which are populated are struggling to keep up with the public sectors, Navi Mumbai manages it with ease.
Almost all the Stations in the city is an architectural marvel & future proof, having Offices & airport-styled concourse. The roads have beautiful tree lanes and footpaths too.
Vashi Bridge, JNPT port and more infrastructure are the proof for how organized the infrastructure are. They also have e- Toilets. How cool is that!
Bhubaneswar

This places has less traffic compared to all most all the cities in India as the roads are broad in Bhunaneshwar. It is green and beautiful and clean as they have number of parks.
They have many famous collages like KIIT,XIMB, Utkal university,BPUT. The city is becoming the new IT capital of eastern India and the government of Odisha is providing adequate support in developing the temple city as an IT capital.
Noida

It’s been ranked as one of the best cities in India for living. Noida is located in the state of Uttar Pradesh and is a significant constituent of national capital region (NCR).
The streets, real estate, Public transport, malls, healthcare, educational institute and corporate offices are at point in this city. They are systematically planned Indian city and has the highest per capita income in NCR region.