According to latest information available with SEBI, draft documents for IPO from as many as 33 companies and preliminary papers for rights issues from 11 entities are under process
Inside story of the National Stock Exchange’s amazing success, leading to hubris, regulatory capture and algo scam

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This means access to other articles (outside the subscription period) are not included.
Articles outside the subscription period can be bought separately for a small price per article.

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Personally I would rather take the risk of investing in blue chip companies where even if I do not make a profit, I won't lose my capital base. Now, when IPOs come, invariably they are with varying "premiums" and after listing I can get them cheaper!
From your list of likely IPOs and rights only a handful are worth considering after serious
study.