Environmental Science

I Want to best college for hotel management and something other courses like masters of computers which type of jobs like i canget in masters of computers

Not at all. In fact that is a very good choice. But, it is suggested that you make enough research about the abundance of quality institutions that provide for this combination.

The best way is to check their website and see the recruitment requirements and plan your degree accordingly. Here is the link that you might be interested in. There are bachelor's and master degrees offered in wildlife sciences by many universities so you may just search as per your preference of place.
http://bnhs.org/bnhs/index.php?option=com_content&view=article&id=230&catid=87

Some of the best in this field are Harvard University, Swiss Federal Institute of Technology Zurich,University of Oxford,Wageningen University and Research Center,University of Queensland Australia,University of California-Berkeley,University of Montpellier and University of Cambridge among others.

Dear Pranab,
Yes, you may pursue Ph.D through distance in environmental science. For the list of the universities, you may refer the link below:
http://www.minglebox.com/science/courses/environmental-science/pg-phd-environmental-science

For colleges in Delhi check this
https://engineering.shiksha.com/msc-environmental-sciences-in-delhi-ncr-categorypage-2-65-1439-0-0-10223-1-2-0-none-1-0
For Bangalore check this
https://engineering.shiksha.com/science-engineering-colleges-in-bangalore-categorypage-2-1-1-0-0-278-106-2-0-none-1-0

IN DELHI you can get what have you desired. becoz one of my friends is doing there. it's all over OK and worth full in long-term.