Practice well from NCERt books, revise over weekend and have short notes with you. Go for groups study and doubt solving and appear for more than 20 mocks and analyze mistakes and scrutinize negative zones. 

Preparatory tips below for reference. 

https://engineering.careers360.com/articles/jee-main-preparation-tips/amp

Job opportunities are huge and immesnse across roles like Channels and Business development, strategic planning, advertising and Media planning,, Account planning and management, product management, brand management and general management. Majorly mix of sales and marketing with strategic planning as crux part of job description is generally offered. 

Depends on which course you select for because all of them are not at par.

IBS Hyderabad is very decent college for MbA and well reputed with excellent faculty and top infrastructure  

Cost of education however is slightly high for mBA. 

Average package hovers around 6 to 8lpa with highest

Hi Ankit! BIMTECH is one of the top B-schools in Delhi-NCR. Marketing is offered as an elective in the programmes. Apart from the General PGDM programme, specialised programmes are offered in International Business, Insurance Business and Retail Management. The admission of PGDM and PGDM (IB) takes place through the scores

Digital marketing is hotspot avenue with thousands of jobs producing in Hyderabad,, Bangalore  Mumbai, Chennai and Delhi. 

Some if best ckassroom courses  for DM courses in Hyderabad is delivered by Upgrad which is post graduation degree course and assures 100% placements with best faculty and live hands on experience  

Both have good opportunities for learners. Bangalore being a great IT sector will give a wider exposure for digital marketing. Hyderabad is no less though. Choose according to your convenience

Digital marketing needs you to be updated with the latest technology and methods of marketing available in the digital world. 

You need to know about search engine optimisation too.