Pachycereus pringlei from Cactus Garden Panchkula: Pachycereus pringlei from Cactus Garden Panchkula
Here is a very good site for cacti http://www.bakersfieldcactus.org/esa/plants.html 

The Cactus Garden was founded by Dr JS Sarkaria who unfortunately passed away a couple of years ago. Twenty five odd years ago he began a Society for Cactus and Succulents. We used to meet in Chandigarh, on the first Sunday of every month to discuss plants, various growing techniques, exchange seedlings and cuttings, drink tea and have brunch. I have some great memories. A journal was published quarterly and I still have my old copies in storage He was very generous with his time and plants and I learnt much from him. Every visit to his house would generate some new species for me. 
A new flower, or successful growth of seedling was cause for much excitement. It is not easy to grow cacti from seeds as they are very susceptible to fungus. 
Once a year in October we had a Cactus and Succulent show where everyone was encouraged to bring their beauties for display.

Thanks a lot … for this information

My hats off for Dr Sarkaria. I had visited this garden more than dozen a times but not knowing anything about him.
thanks a lot for sharing your memories. I would like to meet you if you are in Chandigarh/Panchkula (if you dont mind). As i have to visit Panchkula Sector 2 and 5 regarding my lectures of EDUSAT there.
Pls also tell more about that Cactus Society. Is this working presently. If yes i would like to be a part of that Society