Combining slp and writ in supreme court

Querist :
Anonymous
(Querist) 13 December 2011
This query is : Resolved
Dear Experts,
1) Case filed by People For Animals in Delhi HC and Delhi HC ruled that airguns need license and impugned the Central Government notification No. GSR 991 which exempted air guns from license. The judgement is available at http://indiankanoon.org/doc/1406083/
2) Three affected parties have approached Supreme Court against this Delhi HC order:
a) PC 19693-19695/2011 (NRAI Vs. People for Animals)
b) PC 20773-20775/2011 (Union of India Vs. People for Animals)
c) PC 19880-19882/2011 (M/s AIRGUN,RIFL.PIST.& PELLET MF.ASN Vs. People for Animals)
These three different cases are linked to each other where the Respondent is the same 'People for Animals'.
Can any more person also file his own petition or join these existing petitions in Supreme Court, if he feels aggrieved and affected by this utterly erroneous judgement of Delhi High Court?
Can he combine SLP with writ under Article 32 if he feels the judgement is dwelling on erroneous precedents set by other HCs and blindly followed by Delhi HC and implemented by executive. Therefore in addition to SLP, the executive needs writ directions and clarity to cure the cumulative affect of these misleading judgements by various HCs including Delhi HC?
Devajyoti Barman
(Expert) 14 December 2011
1. Yes he can pru to be added as a party and submit his version of case.
2.Yes the supreme court is likely to hear all the case analogously and pass a common judgement.