i have got my first question answered from tier-1 G policy guideline here
http://www.ukba.homeoffice.gov.uk/sitec ... idance.pdf
That could also be the reason of PB calculator not showing points for my degree
[b]56. An applicant will be awarded no points
for a Bachelor’s degree if:
(a) his last grant of entry clearance was
as a Tier 1 (General) Migrant under the
rules in place between 31 March 2009
and 5 April 2010, or
(b) (i) he has had leave to remain as a
Tier 1 (General) Migrant under the rules
in place between 31 March 2009 and 5
April 2010, and
(ii) his previous entry clearance, leave
to enter or leave to remain before
that leave was not as a Highly Skilled
Migrant, as a Writer, Composer or Artist,
as a Self-employed Lawyer, or as a Tier
1 (General) Migrant.
[/b]