Botany

If you have an interest in fields such as Plant Taxonomy, Ethnobiology, Pathology, Palaeobolagy and Palynology, Plant cytology, Plant geneticists, Plant ecology, Plant Scientists and Weed Scientists etc. Candidates who have advanced qualifications can pursue either an academic career in institutions as lecturers and professors or a scientific career in various scientific positions such as Plant Scientists, Weed Scientists etc. They can also go and work as Researchers and as administrators. They have also the option in Botanical Survey of India and other Government departments but only through UPSC exams. If you have interest in business aspect than MBA is better option.

I am a student freon Biology stream. So, I can surely say that geology and botany have more scope in India. Geology can take you to so many of private, semi-governmental, and governmental jobs in India with interesting works and salary. Botany can either take you to many international work fields if pursued properly and even can take you to environment supporting programme jobs, both private and government. These subjects can lead you the administrative services of India with the help of hard work. There are many further varieties of subjects to combine with these two, if you choose or match correctly, can lead you to a wide range of different work areas and ideas.

No, you can't get admission without entrance exam. There entrance exam are as BHU Post Graduate Entrance Test: Held by Banaras Hindu University in May every year, it is a university level entrance test to take admission for post graduate programs at BHU. This test asks questions from Zoology, Chemistry and Botany.
Joint Entrance Test:. Conducted every year by University of Rajasthan in June, Joint Entrance Test is an entrance examination for admissions in post graduate courses. Its syllabus covers Zoology, Chemistry and Botany.
SVUCET:. This entrance examination is held in June every year by Sri Venkateswara University Common Entrance Test. This test covers questions from Zoology, Chemistry and Botany.