Ph.D

Hi
Yes, you can do bsc + msc and then mtech for physics related field. If you are keen to become an astrophysicist, check BS + MS courses at IISER or IISC. All the best

Better you contact to AISECT college for Phd in Management.

Dear anup soren. Yes it is recognized no problem. to enter into government colleges/Universities you should also clear NET-Lectureship so try for it. you are hundred percent eligible to enter into government services.

Phd is Not required.

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

Hi
You may check IISC, IISER, JNU, IITs , BITS pilani and HRI Allahabad for condensed matter physics.
ICT Mumbai, NIT Calicut and Jamia Milia Islamia offer p.hd in nanotechnology. So check your suitability.