If you think the Chinese vase at the base of the table may be valuable, you should take it (or the photos of it) to a reliable art and antiques appraiser in your area. You aren't likely to get a reliable appraisal on line.

There are many roof systems out there, you have to see what is the industry standard for roof construction in India. You can take a look at this Website to get an idea what roof construction practices they use/d for that region. This is one of more up-to-date concrete roof structure.

what is the procedure to make it

If your ceiling to floor height is approx. 8- 9' , and there is sufficient light from the windows, we suggest 5 w for ambience light, 10 w for general light and 15w for task light. Living room should be a combination of yellow and natural light. if it will be used as work area for study , then white light should be included. Generally school projects are made on dining table so white light should be used along with yellow. Kitchen task light should be white. Passage and bedroom could be yellow. Ambient light is generally warm white and yellow. For watching TV, indirect and ambient light is advisable.