Yes, the date is announced as TISSNET 2017 will be held on 6th January 2018 (2:00 to 3:40 pm). Also, last date to submit the form online November 25, 2017 and form can be submitted by post till November 27, 2017.

To check all about TISSNET 2017, you can go through the below article -

TISSNET 2017

• Candidates with three years Bachelors degree or equivalent from a recognised university are eligible to apply.
• Candidates studying in three and four-year degree programmes should have passed in all the subjects of semester 1 to semester 4 and semester 1 to semester 6 respectively.
• Candidates studying in the final year of their degree programme are also eligible to apply.

Yes it is good to attend the pre admission orientation of TISS as it aims at the following:

• It is organised by the Social Protection Office for all SC/ST/ OBC/PWD/Minority candidates who have qualified to appear for the National Entrance Test (TISS-NET) of the Institute. The orientation programme is scheduled for about 2-3 days in the month of November/December, every year.
• The objective of this programme is to orient them about the whole process of the entrance test, positive and negative aspects of written test, group discussion and personal interview. Besides, another important point which is touched upon is about the common mistakes that candidates make in the admission test and how to overcome those.
• The candidates are also told about the facilities available for the eligible candidates. It is all meant to help them feel confident. This is followed by clarification of any doubts from the candidates.

(Source:  TISS Official Student Handbook)

This shall be good to attend to boost your confidence as well as clearing your doubts if any.

Good Luck.

• Candidates with three years Bachelors degree or equivalent in any discipline from a recognised college/university are eligible to apply.
• Candidates studying in three and four year degree programmes should have passed in all the subjects of semester 1 to semester 4 and semester 1 to semester 6 respectively at the time of applying for TISSNET
• Candidates studying in the final year of their Bachelors degree programme are also eligible to apply to all the programmes. 

Tata Institutes of Social Science does not offer MBA or PGDM Programmes. It offers only the programmes. It offers the programmes like M.A in Human Resource Management, Hospital Administration and Other courses. For the programmes you can go through with given below link.

Tata Institute Programmes

Good luck!