If the new offer u r about to consider is coming with 6 months internship + FTE, don't take it. Also, my honest opinion is go with the one which u have worked with before as u r convenient and aware with the company's work culture. Just bcz u r getting 7 LPA, that doesn't mean u r gonna have a secure job.
Later if u realize that u r not a fit, u would be the first one to be let go. If ur performance is not up to mark, you would be put on PIP. As the economic conditions are uncertain, if layoffs happen, you ll be the first one to be laid off and this happened with many freshers in the last 2 years who got hired with more than 12 LPA. No need to say, many companies & startups which offered more than 12 LPA during campus placements have revoked or rescinded the offer letters or students didn't get the joining letter.
Consider all the above scenarios. You are starting your career and your top priority should be learning curve and skillset. Nowadays many devs who even got more than 12-18 LPA upon graduation are doing MBA just after 2-3 yrs of careers bcz they realized it's not for them and many especially the ones after 2018-19 are not confident about their own experience