Can we stand top on google without external links? I mean for medium level keywords like 3-7 lakh google competetion can we be on 1st page without links from external websites.Is it enuf if we do onpage SEO.?
You could do if you were working on a keyword that had less than ten results in Google. You need good links to support your on-page stuff. There's little point in spending time on-page without at least equal time off-page
Even with excellent internal linking structure (but no external links), you will suffer in competition with other websites' pages that have quality links coming in from related websites.
Unfortunately, today's search engines rely on links to value the content. So you've got to get links back to your site with the keywords you are targeting as the anchor text.
yes you can rank but google detects that you are cheating the search engine and could be penalize or the worst ban.