SH.RAVI ANJARA JI,
After going through Sh.Akash Deep, an expert's reply dated 12.3.2016, I thoroughly re-examined the whole issue.
Period of your invoices is 2001 to 2003 and these pertain to Service Tax. For the first time, Service Tax Credit Rules, 2002 were inserted vide Notification No. 14/2002-ST dated 1.8.2002 (effective from 16.8.2002) and Cenvat Credit was allowed w.e.f. 16.8.2002 subject to three major conditions:-
1.Input Service and Output Service must fall in the same category of taxable service.
2.In any other case input service credit was allowed on or after 14.5.2003 (after issuance of bill)
3. After Full payment of value and Service Tax.
These Service Credit Rules, 2002 were superseded by Cenvat Credit Rules, 2004 vide Notification No.23/2004-CE dated 10.9.2004 wherein across the board Cenvat Credit was allowed. Hence Cenvat Credit Rules, 2002 remained in force up to 9.9.2004.The time limit of six months was incorporated vide notification no.21/14-CE(NT) dated 11.7.14 and time limit was increased up to one year vide Notification No.6/15-CE(NT) dated 1.3.15 (effective from 1.4.15). In other words, condition of payment of value and input service remained in tact up to 31.3.15. Thereafter, w.e.f. 1.4.15 condition of only payment of Service Tax was made mandatory before taking credit. A period of three months was provided for realisation of full value of invoice.
From 16.8.2002 to 10.7.2014, no time limit was in force for availment of Cenvat Credit.There is one judgement of High Court on such issue which took into consideration the period under which invoices remained in the custody of Railways and in your case invoices remained in the custody of the court.These invoices pertained to inputs. The condition of payment of ST for availment of input service credit remained in force from 16.8.2002 onwards i.e. till date.
Now in view of the above legal position, you cannot take input service credit on the strength of invoices issued before 16.8.2002. From 16.8.2002 onwards there is condition that both input service and output service should fall under the same category of service. You do not fulfil.This condition of same input service and output service remained in force till 13.5.2003. Only period left is 14.5.2003 to 31.12.2003 for which you can fight if the amount of cenvat credit is substantial and get the natural justice.The above mentioned judgement of High Court can be helpful to you if you opt for litigation. Without litigation you cannot get this credit. This is my analysis.