How can I convert an LIC policy to a paid policy?

I have the following policies taken 8 years back.
1. LIC New Jeevan Shree
2. LIC Jeevan Rekha
3. LIC Jeevan Suraksha
I have taken up adequate term life insurance cover and I invest separately in mutual funds. I no longer want these LIC policies. How do I convert these into paid up policies? These were taken in the Bangalore branch of LIC.
btw, i meant “paid up” policy.