Lic Jeevan mitra tripal cover plan ?

I have just started LIC Jeevan Mitra Tripal cover Plan for 7 laces sum assured for 30 years and have paid 28501 in April 2011.
This is yearly premium for 30 years.

Now I am confused that

1.)

should I discontinue or surrender this policy and go for term plan as I can get 30 laces cover within 9500
and rest of money 19000 I can invest in PPF to get good retune after 30 year ???.

Am I correct in my thoughts and should do as mentioned above ????.

2.)

If I continue this policy, will I get somewhat equal return of what if I invest 19000 in PPF after 30 years???.

Please help me to get relevant answers.
Age :28

Jeevan Mitra Triple Cover OR PPF+term paln?

i have just started investing in Jeevan Mitra Triple Cover for 7 lacs SA for 30 years and paying 28531 per year.

if i drop this policy and invest in PPF (19.5k) + term plan for 30 lacs by paying 9k per year

will i get better return in it or in above one? .

what would be aprrox return in both case?.